2121113202 has 64 divisors (see below), whose sum is σ = 4745072640. Its totient is φ = 627891264.

The previous prime is 2121113201. The next prime is 2121113209. The reversal of 2121113202 is 2023111212.

It is not an unprimeable number, because it can be changed into a prime (2121113201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219999 + ... + 229437.

It is an arithmetic number, because the mean of its divisors is an integer number (74141760).

Almost surely, 2^2121113202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2121113202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2372536320).

2121113202 is an abundant number, since it is smaller than the sum of its proper divisors (2623959438).

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

2121113202 is a wasteful number, since it uses less digits than its factorization.

2121113202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9567.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2121113202 is about 46055.5447476197. The cubic root of 2121113202 is about 1284.8564697091.

Adding to 2121113202 its reverse (2023111212), we get a palindrome (4144224414).

The spelling of 2121113202 in words is "two billion, one hundred twenty-one million, one hundred thirteen thousand, two hundred two".