111212100021022 has 96 divisors (see below), whose sum is σ = 228571622164224. Its totient is φ = 39399398438400.

The previous prime is 111212100021019. The next prime is 111212100021119. The reversal of 111212100021022 is 220120001212111.

It is a junction number, because it is equal to n+sod(n) for n = 111212100020987 and 111212100021005.

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, 30145179 + ... + 33632662.

It is an arithmetic number, because the mean of its divisors is an integer number (2380954397544).

Almost surely, 2^{111212100021022} is an apocalyptic number.

111212100021022 is an abundant number, since it is smaller than the sum of its proper divisors (117359522143202).

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

111212100021022 is a wasteful number, since it uses less digits than its factorization.

111212100021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63777954 (or 63777941 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111212100021022 its reverse (220120001212111), we get a palindrome (331332101233133).

The spelling of 111212100021022 in words is "one hundred eleven trillion, two hundred twelve billion, one hundred million, twenty-one thousand, twenty-two".