| Base | Representation |
|---|---|
| bin | 1001000110011011011101… |
| … | …10001001100100000101000 |
| 3 | 2121212010202102111011201120 |
| 4 | 10203031232301030200220 |
| 5 | 10110334300410201440 |
| 6 | 110321234211215240 |
| 7 | 4133553524015160 |
| oct | 443155661144050 |
| 9 | 77763672434646 |
| 10 | 20012111022120 |
| 11 | 64160a7a59228 |
| 12 | 22b25935a7520 |
| 13 | b2219844ac09 |
| 14 | 4d283c8d95a0 |
| 15 | 24a863236dd0 |
| hex | 12336ec4c828 |
20012111022120 has 256 divisors, whose sum is σ = 68865969968640. Its totient is φ = 4557348569088.
The previous prime is 20012111022119. The next prime is 20012111022149. The reversal of 20012111022120 is 2122011121002.
It is a super-2 number, since 2×200121110221202 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 20012111022120.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 405628974 + ... + 405678306.
It is an arithmetic number, because the mean of its divisors is an integer number (269007695190).
Almost surely, 220012111022120 is an apocalyptic number.
20012111022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20012111022120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34432984984320).
20012111022120 is an abundant number, since it is smaller than the sum of its proper divisors (48853858946520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20012111022120 is a wasteful number, since it uses less digits than its factorization.
20012111022120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 51124 (or 51120 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 20012111022120 its reverse (2122011121002), we get a palindrome (22134122143122).
The spelling of 20012111022120 in words is "twenty trillion, twelve billion, one hundred eleven million, twenty-two thousand, one hundred twenty".
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