111010021221000 has 256 divisors, whose sum is σ = 381578724184320. Its totient is φ = 26645068800000.

The previous prime is 111010021220927. The next prime is 111010021221023. The reversal of 111010021221000 is 122120010111.

It is a super-2 number, since 2×111010021221000² (a number of 29 digits) contains 22 as substring.

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

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, 13320169 + ... + 19986168.

It is an arithmetic number, because the mean of its divisors is an integer number (1490541891345).

Almost surely, 2^{111010021221000} is an apocalyptic number.

111010021221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111010021221000 is an abundant number, since it is smaller than the sum of its proper divisors (270568702963320).

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

111010021221000 is a wasteful number, since it uses less digits than its factorization.

111010021221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33306473 (or 33306459 counting only the distinct ones).

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

Adding to 111010021221000 its reverse (122120010111), we get a palindrome (111132141231111).

The spelling of 111010021221000 in words is "one hundred eleven trillion, ten billion, twenty-one million, two hundred twenty-one thousand".