221010112012100 has 36 divisors (see below), whose sum is σ = 487720620080400. Its totient is φ = 86905671161760.

The previous prime is 221010112012091. The next prime is 221010112012111. The reversal of 221010112012100 is 1210211010122.

It is a super-2 number, since 2×221010112012100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18729664610 + ... + 18729676409.

Almost surely, 2^{221010112012100} is an apocalyptic number.

221010112012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221010112012100 is an abundant number, since it is smaller than the sum of its proper divisors (266710508068300).

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

221010112012100 is a wasteful number, since it uses less digits than its factorization.

221010112012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37459341092 (or 37459341085 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221010112012100 its reverse (1210211010122), we get a palindrome (222220323022222).

The spelling of 221010112012100 in words is "two hundred twenty-one trillion, ten billion, one hundred twelve million, twelve thousand, one hundred".