220021959700 has 36 divisors (see below), whose sum is σ = 478470125952. Its totient is φ = 87820309600.

The previous prime is 220021959659. The next prime is 220021959713. The reversal of 220021959700 is 7959120022.

It is a self number, because there is not a number n which added to its sum of digits gives 220021959700.

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, 2308996 + ... + 2402395.

It is an arithmetic number, because the mean of its divisors is an integer number (13290836832).

Almost surely, 2^220021959700 is an apocalyptic number.

220021959700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220021959700 is an abundant number, since it is smaller than the sum of its proper divisors (258448166252).

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

220021959700 is a wasteful number, since it uses less digits than its factorization.

220021959700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4711872 (or 4711865 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 220021959700 in words is "two hundred twenty billion, twenty-one million, nine hundred fifty-nine thousand, seven hundred".