2120621005760 has 56 divisors (see below), whose sum is σ = 5050353302880. Its totient is φ = 848143494144.

The previous prime is 2120621005757. The next prime is 2120621005807. The reversal of 2120621005760 is 675001260212.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent 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, 2207726 + ... + 3019154.

Almost surely, 2^{2120621005760} is an apocalyptic number.

2120621005760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120621005760 is an abundant number, since it is smaller than the sum of its proper divisors (2929732297120).

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

2120621005760 is an equidigital number, since it uses as much as digits as its factorization.

2120621005760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819613 (or 819603 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 2120621005760 its reverse (675001260212), we get a palindrome (2795622265972).

The spelling of 2120621005760 in words is "two trillion, one hundred twenty billion, six hundred twenty-one million, five thousand, seven hundred sixty".