220011222122100 has 72 divisors (see below), whose sum is σ = 707295336312320. Its totient is φ = 58669659231840.

The previous prime is 220011222122051. The next prime is 220011222122177. The reversal of 220011222122100 is 1221222110022.

It is a happy number.

220011222122100 is a `hidden beast` number, since 220 + 0 + 1 + 1 + 2 + 221 + 221 + 0 + 0 = 666.

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

It is a congruent number.

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, 40742816212 + ... + 40742821611.

Almost surely, 2^{220011222122100} is an apocalyptic number.

220011222122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220011222122100 is an abundant number, since it is smaller than the sum of its proper divisors (487284114190220).

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

220011222122100 is a wasteful number, since it uses less digits than its factorization.

220011222122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81485637846 (or 81485637833 counting only the distinct ones).

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

Adding to 220011222122100 its reverse (1221222110022), we get a palindrome (221232444232122).

The spelling of 220011222122100 in words is "two hundred twenty trillion, eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred".