111211102022202 has 128 divisors (see below), whose sum is σ = 313978959544320. Its totient is φ = 28384258541760.

The previous prime is 111211102022149. The next prime is 111211102022231. The reversal of 111211102022202 is 202220201112111.

111211102022202 is a `hidden beast` number, since 11 + 121 + 110 + 202 + 220 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 364871568 + ... + 365176235.

It is an arithmetic number, because the mean of its divisors is an integer number (2452960621440).

Almost surely, 2^{111211102022202} is an apocalyptic number.

111211102022202 is an abundant number, since it is smaller than the sum of its proper divisors (202767857522118).

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

111211102022202 is a wasteful number, since it uses less digits than its factorization.

111211102022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730047865 (or 730047859 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111211102022202 its reverse (202220201112111), we get a palindrome (313431303134313).

The spelling of 111211102022202 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred two million, twenty-two thousand, two hundred two".