122211200020 has 96 divisors (see below), whose sum is σ = 316780869888. Its totient is φ = 38566167552.

The previous prime is 122211200009. The next prime is 122211200081. The reversal of 122211200020 is 20002112221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 534784 + ... + 728296.

It is an arithmetic number, because the mean of its divisors is an integer number (3299800728).

Almost surely, 2^122211200020 is an apocalyptic number.

122211200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122211200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158390434944).

122211200020 is an abundant number, since it is smaller than the sum of its proper divisors (194569669868).

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

122211200020 is a wasteful number, since it uses less digits than its factorization.

122211200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193889 (or 193887 counting only the distinct ones).

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

Adding to 122211200020 its reverse (20002112221), we get a palindrome (142213312241).

The spelling of 122211200020 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred thousand, twenty".