122221111121112 has 32 divisors (see below), whose sum is σ = 306087896537280. Its totient is φ = 40669021209120.

The previous prime is 122221111121027. The next prime is 122221111121113. The reversal of 122221111121112 is 211121111122221.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221111121113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4459308798 + ... + 4459336205.

It is an arithmetic number, because the mean of its divisors is an integer number (9565246766790).

Almost surely, 2^{122221111121112} is an apocalyptic number.

122221111121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122221111121112 is an abundant number, since it is smaller than the sum of its proper divisors (183866785416168).

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

122221111121112 is a wasteful number, since it uses less digits than its factorization.

122221111121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8918645583 (or 8918645579 counting only the distinct ones).

The product of its digits is 64, while the sum is 21.

Adding to 122221111121112 its reverse (211121111122221), we get a palindrome (333342222243333).

The spelling of 122221111121112 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twelve".