2100220330 has 16 divisors (see below), whose sum is σ = 4071196584. Its totient is φ = 775465920.

The previous prime is 2100220313. The next prime is 2100220337. The reversal of 2100220330 is 330220012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 915002001 + 1185218329 = 30249^2 + 34427^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2100220330.

It is not an unprimeable number, because it can be changed into a prime (2100220337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8077641 + ... + 8077900.

Almost surely, 2^2100220330 is an apocalyptic number.

2100220330 is a deficient number, since it is larger than the sum of its proper divisors (1970976254).

2100220330 is a wasteful number, since it uses less digits than its factorization.

2100220330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16155561.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2100220330 is about 45828.1608838932. The cubic root of 2100220330 is about 1280.6239491368.

Adding to 2100220330 its reverse (330220012), we get a palindrome (2430440342).

The spelling of 2100220330 in words is "two billion, one hundred million, two hundred twenty thousand, three hundred thirty".