220221011010100 has 36 divisors (see below), whose sum is σ = 488993072829184. Its totient is φ = 86039836858080.

The previous prime is 220221011010083. The next prime is 220221011010227. The reversal of 220221011010100 is 1010110122022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25607090004 + ... + 25607098603.

Almost surely, 2^{220221011010100} is an apocalyptic number.

220221011010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221011010100 is an abundant number, since it is smaller than the sum of its proper divisors (268772061819084).

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

220221011010100 is a wasteful number, since it uses less digits than its factorization.

220221011010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51214188664 (or 51214188657 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220221011010100 its reverse (1010110122022), we get a palindrome (221231121132122).

The spelling of 220221011010100 in words is "two hundred twenty trillion, two hundred twenty-one billion, eleven million, ten thousand, one hundred".