2120121012122 has 4 divisors (see below), whose sum is σ = 3180181518186. Its totient is φ = 1060060506060.

The previous prime is 2120121012073. The next prime is 2120121012157. The reversal of 2120121012122 is 2212101210212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1658766260761 + 461354751361 = 1287931^2 + 679231^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2120121012122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530030253029 + ... + 530030253032.

Almost surely, 2^{2120121012122} is an apocalyptic number.

2120121012122 is a deficient number, since it is larger than the sum of its proper divisors (1060060506064).

2120121012122 is a wasteful number, since it uses less digits than its factorization.

2120121012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060060506063.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2120121012122 its reverse (2212101210212), we get a palindrome (4332222222334).

The spelling of 2120121012122 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, twelve thousand, one hundred twenty-two".