122201202100020 has 96 divisors (see below), whose sum is σ = 342918463845888. Its totient is φ = 32515150052352.

The previous prime is 122201202100013. The next prime is 122201202100039. The reversal of 122201202100020 is 20001202102221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49677957 + ... + 52079763.

It is an arithmetic number, because the mean of its divisors is an integer number (3572067331728).

Almost surely, 2^{122201202100020} is an apocalyptic number.

122201202100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122201202100020 is an abundant number, since it is smaller than the sum of its proper divisors (220717261745868).

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

122201202100020 is a wasteful number, since it uses less digits than its factorization.

122201202100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403689 (or 2403687 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122201202100020 its reverse (20001202102221), we get a palindrome (142202404202241).

The spelling of 122201202100020 in words is "one hundred twenty-two trillion, two hundred one billion, two hundred two million, one hundred thousand, twenty".