122011221221112 has 32 divisors (see below), whose sum is σ = 305034856663680. Its totient is φ = 40669499925600.

The previous prime is 122011221221093. The next prime is 122011221221117. The reversal of 122011221221112 is 211122122110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011221221117) 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, 55597908 + ... + 57750755.

It is an arithmetic number, because the mean of its divisors is an integer number (9532339270740).

Almost surely, 2^{122011221221112} is an apocalyptic number.

122011221221112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122011221221112 is an abundant number, since it is smaller than the sum of its proper divisors (183023635442568).

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

122011221221112 is a wasteful number, since it uses less digits than its factorization.

122011221221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113393523 (or 113393519 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 122011221221112 its reverse (211122122110221), we get a palindrome (333133343331333).

The spelling of 122011221221112 in words is "one hundred twenty-two trillion, eleven billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred twelve".