2121202332320 has 24 divisors (see below), whose sum is σ = 5011340510484. Its totient is φ = 848480932864.

The previous prime is 2121202332289. The next prime is 2121202332367. The reversal of 2121202332320 is 232332021212.

It can be written as a sum of positive squares in 2 ways, for example, as 2102650802704 + 18551529616 = 1450052^2 + 136204^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6628757129 + ... + 6628757448.

Almost surely, 2^{2121202332320} is an apocalyptic number.

2121202332320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121202332320 is an abundant number, since it is smaller than the sum of its proper divisors (2890138178164).

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

2121202332320 is a wasteful number, since it uses less digits than its factorization.

2121202332320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13257514592 (or 13257514584 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2121202332320 its reverse (232332021212), we get a palindrome (2353534353532).

The spelling of 2121202332320 in words is "two trillion, one hundred twenty-one billion, two hundred two million, three hundred thirty-two thousand, three hundred twenty".