2120121002 has 16 divisors (see below), whose sum is σ = 3372855552. Its totient is φ = 997347120.

The previous prime is 2120120971. The next prime is 2120121011. The reversal of 2120121002 is 2001210212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374978 + ... + 380589.

It is an arithmetic number, because the mean of its divisors is an integer number (210803472).

Almost surely, 2^2120121002 is an apocalyptic number.

2120121002 is a deficient number, since it is larger than the sum of its proper divisors (1252734550).

2120121002 is a wasteful number, since it uses less digits than its factorization.

2120121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755653.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2120121002 is about 46044.7717118893. The cubic root of 2120121002 is about 1284.6560979707.

Adding to 2120121002 its reverse (2001210212), we get a palindrome (4121331214).

The spelling of 2120121002 in words is "two billion, one hundred twenty million, one hundred twenty-one thousand, two".