2120211321320 has 32 divisors (see below), whose sum is σ = 4775289361920. Its totient is φ = 847228726080.

The previous prime is 2120211321301. The next prime is 2120211321359. The reversal of 2120211321320 is 231231120212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2120211321292 and 2120211321301.

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, 26703692 + ... + 26782971.

It is an arithmetic number, because the mean of its divisors is an integer number (149227792560).

Almost surely, 2^{2120211321320} is an apocalyptic number.

2120211321320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120211321320 is an abundant number, since it is smaller than the sum of its proper divisors (2655078040600).

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

2120211321320 is a wasteful number, since it uses less digits than its factorization.

2120211321320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53487665 (or 53487661 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2120211321320 its reverse (231231120212), we get a palindrome (2351442441532).

The spelling of 2120211321320 in words is "two trillion, one hundred twenty billion, two hundred eleven million, three hundred twenty-one thousand, three hundred twenty".