10211012399977 has 2 divisors, whose sum is σ = 10211012399978. Its totient is φ = 10211012399976.

The previous prime is 10211012399897. The next prime is 10211012400031. The reversal of 10211012399977 is 77999321011201.

It is a happy number.

10211012399977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8118647256976 + 2092365143001 = 2849324^2 + 1446501^2 .

It is a cyclic number.

It is not a de Polignac number, because 10211012399977 - 2¹⁵ = 10211012367209 is a prime.

It is not a weakly prime, because it can be changed into another prime (10911012399977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105506199988 + 5105506199989.

It is an arithmetic number, because the mean of its divisors is an integer number (5105506199989).

Almost surely, 2^{10211012399977} is an apocalyptic number.

It is an amenable number.

10211012399977 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211012399977 is an equidigital number, since it uses as much as digits as its factorization.

10211012399977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 52.

The spelling of 10211012399977 in words is "ten trillion, two hundred eleven billion, twelve million, three hundred ninety-nine thousand, nine hundred seventy-seven".