10217122639 has 2 divisors, whose sum is σ = 10217122640. Its totient is φ = 10217122638.

The previous prime is 10217122577. The next prime is 10217122649. The reversal of 10217122639 is 93622171201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10217122639 - 2⁷ = 10217122511 is a prime.

It is a super-4 number, since 4×10217122639⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10217122649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5108561319 + 5108561320.

It is an arithmetic number, because the mean of its divisors is an integer number (5108561320).

Almost surely, 2^10217122639 is an apocalyptic number.

10217122639 is a deficient number, since it is larger than the sum of its proper divisors (1).

10217122639 is an equidigital number, since it uses as much as digits as its factorization.

10217122639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 10217122639 in words is "ten billion, two hundred seventeen million, one hundred twenty-two thousand, six hundred thirty-nine".