122112111021222 has 32 divisors (see below), whose sum is σ = 291248761692672. Its totient is φ = 33372253943424.

The previous prime is 122112111021221. The next prime is 122112111021283. The reversal of 122112111021222 is 222120111211221.

It is a super-2 number, since 2×122112111021222² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112111021221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63205025443 + ... + 63205027374.

It is an arithmetic number, because the mean of its divisors is an integer number (9101523802896).

Almost surely, 2^{122112111021222} is an apocalyptic number.

122112111021222 is an abundant number, since it is smaller than the sum of its proper divisors (169136650671450).

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

122112111021222 is a wasteful number, since it uses less digits than its factorization.

122112111021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126410052852.

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

Adding to 122112111021222 its reverse (222120111211221), we get a palindrome (344232222232443).

The spelling of 122112111021222 in words is "one hundred twenty-two trillion, one hundred twelve billion, one hundred eleven million, twenty-one thousand, two hundred twenty-two".