2120768977972 has 12 divisors (see below), whose sum is σ = 3713690223936. Its totient is φ = 1059714628280.

The previous prime is 2120768977949. The next prime is 2120768977981. The reversal of 2120768977972 is 2797798670212.

It is a super-2 number, since 2×2120768977972² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120768977898 and 2120768977907.

It is a congruent number.

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, 167458054 + ... + 167470717.

It is an arithmetic number, because the mean of its divisors is an integer number (309474185328).

Almost surely, 2^{2120768977972} is an apocalyptic number.

It is an amenable number.

2120768977972 is a deficient number, since it is larger than the sum of its proper divisors (1592921245964).

2120768977972 is a wasteful number, since it uses less digits than its factorization.

2120768977972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334930358 (or 334930356 counting only the distinct ones).

The product of its (nonzero) digits is 74680704, while the sum is 67.

The spelling of 2120768977972 in words is "two trillion, one hundred twenty billion, seven hundred sixty-eight million, nine hundred seventy-seven thousand, nine hundred seventy-two".