122210020400 has 120 divisors (see below), whose sum is σ = 322923123264. Its totient is φ = 44163532800.

The previous prime is 122210020399. The next prime is 122210020411. The reversal of 122210020400 is 4020012221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5621 + ... + 494420.

Almost surely, 2^122210020400 is an apocalyptic number.

122210020400 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 122210020400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161461561632).

122210020400 is an abundant number, since it is smaller than the sum of its proper divisors (200713102864).

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

122210020400 is a wasteful number, since it uses less digits than its factorization.

122210020400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500119 (or 500108 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 122210020400 its reverse (4020012221), we get a palindrome (126230032621).

The spelling of 122210020400 in words is "one hundred twenty-two billion, two hundred ten million, twenty thousand, four hundred".