21211120010279 has 2 divisors, whose sum is σ = 21211120010280. Its totient is φ = 21211120010278.

The previous prime is 21211120010177. The next prime is 21211120010309. The reversal of 21211120010279 is 97201002111212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21211120010279 - 2¹⁶ = 21211119944743 is a prime.

It is a super-2 number, since 2×21211120010279² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21211120016279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605560005139 + 10605560005140.

It is an arithmetic number, because the mean of its divisors is an integer number (10605560005140).

Almost surely, 2^{21211120010279} is an apocalyptic number.

21211120010279 is a deficient number, since it is larger than the sum of its proper divisors (1).

21211120010279 is an equidigital number, since it uses as much as digits as its factorization.

21211120010279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The spelling of 21211120010279 in words is "twenty-one trillion, two hundred eleven billion, one hundred twenty million, ten thousand, two hundred seventy-nine".