220020220120100 has 18 divisors (see below), whose sum is σ = 477443877660834. Its totient is φ = 88008088048000.

The previous prime is 220020220120081. The next prime is 220020220120133. The reversal of 220020220120100 is 1021022020022.

It can be written as a sum of positive squares in 3 ways, for example, as 332034098176 + 219688186021924 = 576224^2 + 14821882^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1100101100501 + ... + 1100101100700.

Almost surely, 2^{220020220120100} is an apocalyptic number.

220020220120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220020220120100 is an abundant number, since it is smaller than the sum of its proper divisors (257423657540734).

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

220020220120100 is a wasteful number, since it uses less digits than its factorization.

220020220120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200202201215 (or 2200202201208 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220020220120100 its reverse (1021022020022), we get a palindrome (221041242140122).

The spelling of 220020220120100 in words is "two hundred twenty trillion, twenty billion, two hundred twenty million, one hundred twenty thousand, one hundred".