2120120021002 has 16 divisors (see below), whose sum is σ = 3196969523712. Its totient is φ = 1054463997280.

The previous prime is 2120120020969. The next prime is 2120120021011. The reversal of 2120120021002 is 2001200210212.

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, 9696678 + ... + 9912910.

It is an arithmetic number, because the mean of its divisors is an integer number (199810595232).

Almost surely, 2^{2120120021002} is an apocalyptic number.

2120120021002 is a deficient number, since it is larger than the sum of its proper divisors (1076849502710).

2120120021002 is a wasteful number, since it uses less digits than its factorization.

2120120021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242093.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2120120021002 its reverse (2001200210212), we get a palindrome (4121320231214).

The spelling of 2120120021002 in words is "two trillion, one hundred twenty billion, one hundred twenty million, twenty-one thousand, two".