10021211269 has 2 divisors, whose sum is σ = 10021211270. Its totient is φ = 10021211268.

The previous prime is 10021211243. The next prime is 10021211281. The reversal of 10021211269 is 96211212001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9544313025 + 476898244 = 97695^2 + 21838^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021211269 - 2⁷ = 10021211141 is a prime.

It is a super-2 number, since 2×10021211269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021211209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010605634 + 5010605635.

It is an arithmetic number, because the mean of its divisors is an integer number (5010605635).

Almost surely, 2^10021211269 is an apocalyptic number.

It is an amenable number.

10021211269 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021211269 is an equidigital number, since it uses as much as digits as its factorization.

10021211269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 10021211269 in words is "ten billion, twenty-one million, two hundred eleven thousand, two hundred sixty-nine".