111101020222212 has 72 divisors (see below), whose sum is σ = 288462058289496. Its totient is φ = 36028624034304.

The previous prime is 111101020222177. The next prime is 111101020222217. The reversal of 111101020222212 is 212222020101111.

111101020222212 is a `hidden beast` number, since 111 + 101 + 0 + 20 + 222 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 104058238399236 + 7042781822976 = 10200894^2 + 2653824^2 .

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

It is not an unprimeable number, because it can be changed into a prime (111101020222217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6819238 + ... + 16392194.

It is an arithmetic number, because the mean of its divisors is an integer number (4006417476243).

Almost surely, 2^{111101020222212} is an apocalyptic number.

111101020222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111101020222212 is an abundant number, since it is smaller than the sum of its proper divisors (177361038067284).

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

111101020222212 is a wasteful number, since it uses less digits than its factorization.

111101020222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581717 (or 9581712 counting only the distinct ones).

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

Adding to 111101020222212 its reverse (212222020101111), we get a palindrome (323323040323323).

The spelling of 111101020222212 in words is "one hundred eleven trillion, one hundred one billion, twenty million, two hundred twenty-two thousand, two hundred twelve".