220001502120 has 64 divisors (see below), whose sum is σ = 660645037440. Its totient is φ = 58610131200.

The previous prime is 220001502089. The next prime is 220001502157. The reversal of 220001502120 is 21205100022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220001502120.

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 15 ways as a sum of consecutive naturals, for example, 765391 + ... + 1012830.

It is an arithmetic number, because the mean of its divisors is an integer number (10322578710).

Almost surely, 2^220001502120 is an apocalyptic number.

220001502120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220001502120 is an abundant number, since it is smaller than the sum of its proper divisors (440643535320).

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

220001502120 is a wasteful number, since it uses less digits than its factorization.

220001502120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779266 (or 1779262 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 220001502120 its reverse (21205100022), we get a palindrome (241206602142).

The spelling of 220001502120 in words is "two hundred twenty billion, one million, five hundred two thousand, one hundred twenty".