111212021012202 has 96 divisors (see below), whose sum is σ = 263668003372800. Its totient is φ = 33597695324160.

The previous prime is 111212021012171. The next prime is 111212021012249. The reversal of 111212021012202 is 202210120212111.

111212021012202 is a `hidden beast` number, since 1 + 112 + 120 + 210 + 1 + 220 + 2 = 666.

It is a super-2 number, since 2×111212021012202² (a number of 29 digits) contains 22 as substring.

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

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, 221307658 + ... + 221809610.

It is an arithmetic number, because the mean of its divisors is an integer number (2746541701800).

Almost surely, 2^{111212021012202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111212021012202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131834001686400).

111212021012202 is an abundant number, since it is smaller than the sum of its proper divisors (152455982360598).

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

111212021012202 is a wasteful number, since it uses less digits than its factorization.

111212021012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505388 (or 505385 counting only the distinct ones).

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

Adding to 111212021012202 its reverse (202210120212111), we get a palindrome (313422141224313).

The spelling of 111212021012202 in words is "one hundred eleven trillion, two hundred twelve billion, twenty-one million, twelve thousand, two hundred two".