111201112121022 has 96 divisors (see below), whose sum is σ = 311512879851264. Its totient is φ = 28883405736000.

The previous prime is 111201112120937. The next prime is 111201112121051. The reversal of 111201112121022 is 220121211102111.

It is a happy number.

111201112121022 is a `hidden beast` number, since 111 + 201 + 1 + 121 + 210 + 22 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 111201112120986 and 111201112121004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1485734479 + ... + 1485809322.

It is an arithmetic number, because the mean of its divisors is an integer number (3244925831784).

Almost surely, 2^{111201112121022} is an apocalyptic number.

111201112121022 is an abundant number, since it is smaller than the sum of its proper divisors (200311767730242).

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

111201112121022 is a wasteful number, since it uses less digits than its factorization.

111201112121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971543836 (or 2971543824 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111201112121022 its reverse (220121211102111), we get a palindrome (331322323223133).

The spelling of 111201112121022 in words is "one hundred eleven trillion, two hundred one billion, one hundred twelve million, one hundred twenty-one thousand, twenty-two".