2131201122 has 16 divisors (see below), whose sum is σ = 4263350112. Its totient is φ = 710242400.

The previous prime is 2131201117. The next prime is 2131201123. The reversal of 2131201122 is 2211021312.

It is not an unprimeable number, because it can be changed into a prime (2131201123) 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, 8379 + ... + 65822.

It is an arithmetic number, because the mean of its divisors is an integer number (266459382).

Almost surely, 2^2131201122 is an apocalyptic number.

2131201122 is an abundant number, since it is smaller than the sum of its proper divisors (2132148990).

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

2131201122 is a wasteful number, since it uses less digits than its factorization.

2131201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78993.

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

The square root of 2131201122 is about 46164.9339000935. The cubic root of 2131201122 is about 1286.8901557997.

Adding to 2131201122 its reverse (2211021312), we get a palindrome (4342222434).

The spelling of 2131201122 in words is "two billion, one hundred thirty-one million, two hundred one thousand, one hundred twenty-two".