2121002213120 has 144 divisors (see below), whose sum is σ = 5879742274560. Its totient is φ = 717995446272.

The previous prime is 2121002213107. The next prime is 2121002213137. The reversal of 2121002213120 is 213122001212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790382 + ... + 2206061.

Almost surely, 2^{2121002213120} is an apocalyptic number.

2121002213120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121002213120 is an abundant number, since it is smaller than the sum of its proper divisors (3758740061440).

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

2121002213120 is an equidigital number, since it uses as much as digits as its factorization.

2121002213120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996550 (or 2996536 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2121002213120 its reverse (213122001212), we get a palindrome (2334124214332).

The spelling of 2121002213120 in words is "two trillion, one hundred twenty-one billion, two million, two hundred thirteen thousand, one hundred twenty".