2101220300 has 36 divisors (see below), whose sum is σ = 4706740416. Its totient is φ = 813374400.

The previous prime is 2101220293. The next prime is 2101220369. The reversal of 2101220300 is 30221012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335807 + ... + 342006.

Almost surely, 2^2101220300 is an apocalyptic number.

2101220300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101220300 is an abundant number, since it is smaller than the sum of its proper divisors (2605520116).

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

2101220300 is a wasteful number, since it uses less digits than its factorization.

2101220300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677858 (or 677851 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2101220300 is about 45839.0695804354. The cubic root of 2101220300 is about 1280.8271631084.

Adding to 2101220300 its reverse (30221012), we get a palindrome (2131441312).

The spelling of 2101220300 in words is "two billion, one hundred one million, two hundred twenty thousand, three hundred".