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12210211210120 = 2357211678452781
BaseRepresentation
bin1011000110101110100101…
…0011010100001110001000
31121020021200121120000020021
42301223221103110032020
53100023003032210440
641545143225510224
72400105262555300
oct261535123241610
947207617500207
1012210211210120
1139883599aa330
121452507042374
136a75583a9b11
14302d97cc2600
15162937a7384a
hexb1ae94d4388

12210211210120 has 192 divisors, whose sum is σ = 35384021674560. Its totient is φ = 3748976985600.

The previous prime is 12210211210117. The next prime is 12210211210121. The reversal of 12210211210120 is 2101211201221.

It is a super-2 number, since 2×122102112101202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12210211210094 and 12210211210103.

It is not an unprimeable number, because it can be changed into a prime (12210211210121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2781871 + ... + 5670910.

It is an arithmetic number, because the mean of its divisors is an integer number (184291779555).

Almost surely, 212210211210120 is an apocalyptic number.

12210211210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210211210120 is an abundant number, since it is smaller than the sum of its proper divisors (23173810464440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12210211210120 is a wasteful number, since it uses less digits than its factorization.

12210211210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8452884 (or 8452873 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12210211210120 its reverse (2101211201221), we get a palindrome (14311422411341).

The spelling of 12210211210120 in words is "twelve trillion, two hundred ten billion, two hundred eleven million, two hundred ten thousand, one hundred twenty".