122021212112 has 10 divisors (see below), whose sum is σ = 236416098498. Its totient is φ = 61010606048.

The previous prime is 122021212073. The next prime is 122021212127. The reversal of 122021212112 is 211212120221.

It can be written as a sum of positive squares in only one way, i.e., 90495078976 + 31526133136 = 300824^2 + 177556^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3813162863 + ... + 3813162894.

Almost surely, 2^122021212112 is an apocalyptic number.

It is an amenable number.

122021212112 is a deficient number, since it is larger than the sum of its proper divisors (114394886386).

122021212112 is an equidigital number, since it uses as much as digits as its factorization.

122021212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626325765 (or 7626325759 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122021212112 its reverse (211212120221), we get a palindrome (333233332333).

The spelling of 122021212112 in words is "one hundred twenty-two billion, twenty-one million, two hundred twelve thousand, one hundred twelve".