122221201221112 has 32 divisors (see below), whose sum is σ = 268290441709920. Its totient is φ = 51102941276160.

The previous prime is 122221201221103. The next prime is 122221201221113. The reversal of 122221201221112 is 211122102122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221201221113) 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, 26616112953 + ... + 26616117544.

It is an arithmetic number, because the mean of its divisors is an integer number (8384076303435).

Almost surely, 2^{122221201221112} is an apocalyptic number.

It is an amenable number.

122221201221112 is an abundant number, since it is smaller than the sum of its proper divisors (146069240488808).

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

122221201221112 is a wasteful number, since it uses less digits than its factorization.

122221201221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53232230551 (or 53232230547 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 122221201221112 its reverse (211122102122221), we get a palindrome (333343303343333).

The spelling of 122221201221112 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty-one thousand, one hundred twelve".