111202101121220 has 96 divisors (see below), whose sum is σ = 240366920640000. Its totient is φ = 43201810349568.

The previous prime is 111202101121217. The next prime is 111202101121289. The reversal of 111202101121220 is 22121101202111.

It is a super-2 number, since 2×111202101121220² (a number of 29 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 21615926 + ... + 26261234.

It is an arithmetic number, because the mean of its divisors is an integer number (2503822090000).

Almost surely, 2^{111202101121220} is an apocalyptic number.

111202101121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111202101121220 is an abundant number, since it is smaller than the sum of its proper divisors (129164819518780).

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

111202101121220 is a wasteful number, since it uses less digits than its factorization.

111202101121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645645 (or 4645643 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111202101121220 its reverse (22121101202111), we get a palindrome (133323202323331).

The spelling of 111202101121220 in words is "one hundred eleven trillion, two hundred two billion, one hundred one million, one hundred twenty-one thousand, two hundred twenty".