122021112 has 16 divisors (see below), whose sum is σ = 305052840. Its totient is φ = 40673696.

The previous prime is 122021111. The next prime is 122021149. The reversal of 122021112 is 211120221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2542083 + ... + 2542130.

Almost surely, 2^122021112 is an apocalyptic number.

122021112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122021112 is an abundant number, since it is smaller than the sum of its proper divisors (183031728).

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

122021112 is a wasteful number, since it uses less digits than its factorization.

122021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084222 (or 5084218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 122021112 is about 11046.3166711805. The cubic root of 122021112 is about 495.9961736611.

Adding to 122021112 its reverse (211120221), we get a palindrome (333141333).

The spelling of 122021112 in words is "one hundred twenty-two million, twenty-one thousand, one hundred twelve".