2122980787 has 2 divisors, whose sum is σ = 2122980788. Its totient is φ = 2122980786.

The previous prime is 2122980767. The next prime is 2122980793. The reversal of 2122980787 is 7870892212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122980787 is a prime.

It is a super-2 number, since 2×2122980787² = 9014094843942278738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2122980767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061490393 + 1061490394.

It is an arithmetic number, because the mean of its divisors is an integer number (1061490394).

Almost surely, 2^2122980787 is an apocalyptic number.

2122980787 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122980787 is an equidigital number, since it uses as much as digits as its factorization.

2122980787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 2122980787 is about 46075.8156411799. The cubic root of 2122980787 is about 1285.2334533226.

The spelling of 2122980787 in words is "two billion, one hundred twenty-two million, nine hundred eighty thousand, seven hundred eighty-seven".