2120012980 has 12 divisors (see below), whose sum is σ = 4452027300. Its totient is φ = 848005184.

The previous prime is 2120012969. The next prime is 2120012981. The reversal of 2120012980 is 892100212.

It can be written as a sum of positive squares in 2 ways, for example, as 1512587664 + 607425316 = 38892^2 + 24646^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120012981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53000305 + ... + 53000344.

It is an arithmetic number, because the mean of its divisors is an integer number (371002275).

Almost surely, 2^2120012980 is an apocalyptic number.

2120012980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120012980 is an abundant number, since it is smaller than the sum of its proper divisors (2332014320).

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

2120012980 is a wasteful number, since it uses less digits than its factorization.

2120012980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106000658 (or 106000656 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 2120012980 is about 46043.5986864624. The cubic root of 2120012980 is about 1284.6342794868.

The spelling of 2120012980 in words is "two billion, one hundred twenty million, twelve thousand, nine hundred eighty".