122221010020 has 12 divisors (see below), whose sum is σ = 256664121084. Its totient is φ = 48888404000.

The previous prime is 122221009951. The next prime is 122221010039. The reversal of 122221010020 is 20010122221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 90014400576 + 32206609444 = 300024^2 + 179462^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055525231 + ... + 3055525270.

It is an arithmetic number, because the mean of its divisors is an integer number (21388676757).

Almost surely, 2^122221010020 is an apocalyptic number.

122221010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122221010020 is an abundant number, since it is smaller than the sum of its proper divisors (134443111064).

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

122221010020 is a wasteful number, since it uses less digits than its factorization.

122221010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111050510 (or 6111050508 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122221010020 its reverse (20010122221), we get a palindrome (142231132241).

The spelling of 122221010020 in words is "one hundred twenty-two billion, two hundred twenty-one million, ten thousand, twenty".