220120002 has 12 divisors (see below), whose sum is σ = 476926710. Its totient is φ = 73373328.

The previous prime is 220119979. The next prime is 220120003. The reversal of 220120002 is 200021022.

220120002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 202806081 + 17313921 = 14241^2 + 4161^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (220120003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6114427 + ... + 6114462.

Almost surely, 2^220120002 is an apocalyptic number.

220120002 is an abundant number, since it is smaller than the sum of its proper divisors (256806708).

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

220120002 is a wasteful number, since it uses less digits than its factorization.

220120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12228897 (or 12228894 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 220120002 is about 14836.4416893000. The cubic root of 220120002 is about 603.7908157533.

Adding to 220120002 its reverse (200021022), we get a palindrome (420141024).

The spelling of 220120002 in words is "two hundred twenty million, one hundred twenty thousand, two".