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11121010012020 = 223567101221312377
BaseRepresentation
bin1010000111010100111111…
…0110011110111101110100
31110101011021022100012211110
42201311033312132331310
52424201312030341040
635352531012035020
72225315665256226
oct241651766367564
943334238305743
1011121010012020
1135a8437256007
1212b73ab902a70
1362892594276c
142a638cab4416
1514443a16c980
hexa1d4fd9ef74

11121010012020 has 192 divisors, whose sum is σ = 31933495593216. Its totient is φ = 2890875187200.

The previous prime is 11121010012003. The next prime is 11121010012033. The reversal of 11121010012020 is 2021001012111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11121010011987 and 11121010012005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 898516072 + ... + 898528448.

It is an arithmetic number, because the mean of its divisors is an integer number (166320289548).

Almost surely, 211121010012020 is an apocalyptic number.

11121010012020 is a gapful number since it is divisible by the number (10) 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 11121010012020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15966747796608).

11121010012020 is an abundant number, since it is smaller than the sum of its proper divisors (20812485581196).

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

11121010012020 is a wasteful number, since it uses less digits than its factorization.

11121010012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14770 (or 14768 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11121010012020 its reverse (2021001012111), we get a palindrome (13142011024131).

The spelling of 11121010012020 in words is "eleven trillion, one hundred twenty-one billion, ten million, twelve thousand, twenty".