2101212304 has 40 divisors (see below), whose sum is σ = 4108275000. Its totient is φ = 1041048576.

The previous prime is 2101212251. The next prime is 2101212317. The reversal of 2101212304 is 4032121012.

It can be written as a sum of positive squares in 4 ways, for example, as 17472400 + 2083739904 = 4180^2 + 45648^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355722 + ... + 1357270.

It is an arithmetic number, because the mean of its divisors is an integer number (102706875).

Almost surely, 2^2101212304 is an apocalyptic number.

It is an amenable number.

2101212304 is a deficient number, since it is larger than the sum of its proper divisors (2007062696).

2101212304 is a wasteful number, since it uses less digits than its factorization.

2101212304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275 (or 2269 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2101212304 is about 45838.9823621773. The cubic root of 2101212304 is about 1280.8255384165.

Adding to 2101212304 its reverse (4032121012), we get a palindrome (6133333316).

The spelling of 2101212304 in words is "two billion, one hundred one million, two hundred twelve thousand, three hundred four".