122020520144 has 40 divisors (see below), whose sum is σ = 237614235168. Its totient is φ = 60700913280.

The previous prime is 122020520087. The next prime is 122020520201. The reversal of 122020520144 is 441025020221.

It is an interprime number because it is at equal distance from previous prime (122020520087) and next prime (122020520201).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20209094 + ... + 20215130.

Almost surely, 2^122020520144 is an apocalyptic number.

It is an amenable number.

122020520144 is a deficient number, since it is larger than the sum of its proper divisors (115593715024).

122020520144 is a wasteful number, since it uses less digits than its factorization.

122020520144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12243 (or 12237 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 122020520144 its reverse (441025020221), we get a palindrome (563045540365).

The spelling of 122020520144 in words is "one hundred twenty-two billion, twenty million, five hundred twenty thousand, one hundred forty-four".