111021001010220 has 96 divisors (see below), whose sum is σ = 355268946816000. Its totient is φ = 25376104260864.

The previous prime is 111021001010191. The next prime is 111021001010261. The reversal of 111021001010220 is 22010100120111.

It is a super-2 number, since 2×111021001010220² (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 a junction number, because it is equal to n+sod(n) for n = 111021001010196 and 111021001010205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105804706 + ... + 106848854.

It is an arithmetic number, because the mean of its divisors is an integer number (3700718196000).

Almost surely, 2^{111021001010220} is an apocalyptic number.

111021001010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111021001010220 is an abundant number, since it is smaller than the sum of its proper divisors (244247945805780).

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

111021001010220 is a wasteful number, since it uses less digits than its factorization.

111021001010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297327 (or 1297325 counting only the distinct ones).

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

Adding to 111021001010220 its reverse (22010100120111), we get a palindrome (133031101130331).

The spelling of 111021001010220 in words is "one hundred eleven trillion, twenty-one billion, one million, ten thousand, two hundred twenty".