2152121122 has 8 divisors (see below), whose sum is σ = 3332316672. Its totient is φ = 1041348900.

The previous prime is 2152121113. The next prime is 2152121123. The reversal of 2152121122 is 2211212512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2152121122.

It is not an unprimeable number, because it can be changed into a prime (2152121123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17355754 + ... + 17355877.

It is an arithmetic number, because the mean of its divisors is an integer number (416539584).

Almost surely, 2^2152121122 is an apocalyptic number.

2152121122 is a deficient number, since it is larger than the sum of its proper divisors (1180195550).

2152121122 is a wasteful number, since it uses less digits than its factorization.

2152121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34711664.

The product of its digits is 160, while the sum is 19.

The square root of 2152121122 is about 46390.9594856584. The cubic root of 2152121122 is about 1291.0871835624.

Adding to 2152121122 its reverse (2211212512), we get a palindrome (4363333634).

The spelling of 2152121122 in words is "two billion, one hundred fifty-two million, one hundred twenty-one thousand, one hundred twenty-two".