2121323202 has 32 divisors (see below), whose sum is σ = 4747982400. Its totient is φ = 702018144.

The previous prime is 2121323201. The next prime is 2121323209. The reversal of 2121323202 is 2023231212.

2121323202 is a `hidden beast` number, since 212 + 132 + 320 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2121323201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133803 + ... + 148814.

It is an arithmetic number, because the mean of its divisors is an integer number (148374450).

Almost surely, 2^2121323202 is an apocalyptic number.

2121323202 is an abundant number, since it is smaller than the sum of its proper divisors (2626659198).

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

2121323202 is a wasteful number, since it uses less digits than its factorization.

2121323202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282767 (or 282761 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2121323202 is about 46057.8245469757. The cubic root of 2121323202 is about 1284.8988705507.

Adding to 2121323202 its reverse (2023231212), we get a palindrome (4144554414).

The spelling of 2121323202 in words is "two billion, one hundred twenty-one million, three hundred twenty-three thousand, two hundred two".