222201022202100 has 108 divisors (see below), whose sum is σ = 704302341413580. Its totient is φ = 58587835046400.

The previous prime is 222201022202057. The next prime is 222201022202179. The reversal of 222201022202100 is 1202220102222.

222201022202100 is a `hidden beast` number, since 2 + 2 + 220 + 10 + 2 + 220 + 210 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 12913472235024 + 209287549967076 = 3593532^2 + 14466774^2 .

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 35 ways as a sum of consecutive naturals, for example, 1386942511 + ... + 1387102710.

Almost surely, 2^{222201022202100} is an apocalyptic number.

222201022202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222201022202100 is an abundant number, since it is smaller than the sum of its proper divisors (482101319211480).

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

222201022202100 is a wasteful number, since it uses less digits than its factorization.

222201022202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774045330 (or 2774045320 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222201022202100 its reverse (1202220102222), we get a palindrome (223403242304322).

The spelling of 222201022202100 in words is "two hundred twenty-two trillion, two hundred one billion, twenty-two million, two hundred two thousand, one hundred".