122211202220100 has 432 divisors, whose sum is σ = 476719815062400. Its totient is φ = 25551234293760.

The previous prime is 122211202220027. The next prime is 122211202220111. The reversal of 122211202220100 is 1022202112221.

It is a happy number.

122211202220100 is a `hidden beast` number, since 1 + 2 + 221 + 120 + 2 + 220 + 100 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 14131789 + ... + 21074388.

Almost surely, 2^{122211202220100} is an apocalyptic number.

122211202220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122211202220100 is an abundant number, since it is smaller than the sum of its proper divisors (354508612842300).

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

122211202220100 is a wasteful number, since it uses less digits than its factorization.

122211202220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35206252 (or 35206242 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122211202220100 its reverse (1022202112221), we get a palindrome (123233404332321).

The spelling of 122211202220100 in words is "one hundred twenty-two trillion, two hundred eleven billion, two hundred two million, two hundred twenty thousand, one hundred".