111021022012212 has 96 divisors (see below), whose sum is σ = 309980875366400. Its totient is φ = 34159471238016.

The previous prime is 111021022012211. The next prime is 111021022012247. The reversal of 111021022012212 is 212210220120111.

111021022012212 is a `hidden beast` number, since 1 + 1 + 10 + 210 + 220 + 1 + 221 + 2 = 666.

It is a super-2 number, since 2×111021022012212² (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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021022012211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57154893 + ... + 59065419.

Almost surely, 2^{111021022012212} is an apocalyptic number.

111021022012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111021022012212 is an abundant number, since it is smaller than the sum of its proper divisors (198959853354188).

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

111021022012212 is a wasteful number, since it uses less digits than its factorization.

111021022012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951942 (or 1951934 counting only the distinct ones).

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

Adding to 111021022012212 its reverse (212210220120111), we get a palindrome (323231242132323).

The spelling of 111021022012212 in words is "one hundred eleven trillion, twenty-one billion, twenty-two million, twelve thousand, two hundred twelve".