221100100223130 has 48 divisors (see below), whose sum is σ = 585706680603720. Its totient is φ = 57847573390464.

The previous prime is 221100100223113. The next prime is 221100100223161. The reversal of 221100100223130 is 31322001001122.

221100100223130 is a `hidden beast` number, since 2 + 211 + 0 + 0 + 100 + 223 + 130 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 212643502454601 + 8456597768529 = 14582301^2 + 2908023^2 .

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 23 ways as a sum of consecutive naturals, for example, 23176106365 + ... + 23176115904.

Almost surely, 2^{221100100223130} is an apocalyptic number.

221100100223130 is an abundant number, since it is smaller than the sum of its proper divisors (364606580380590).

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

221100100223130 is a wasteful number, since it uses less digits than its factorization.

221100100223130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46352222335 (or 46352222332 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 221100100223130 its reverse (31322001001122), we get a palindrome (252422101224252).

The spelling of 221100100223130 in words is "two hundred twenty-one trillion, one hundred billion, one hundred million, two hundred twenty-three thousand, one hundred thirty".