10101221231 has 2 divisors, whose sum is σ = 10101221232. Its totient is φ = 10101221230.

The previous prime is 10101221183. The next prime is 10101221239. The reversal of 10101221231 is 13212210101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10101221231 - 2¹⁴ = 10101204847 is a prime.

It is a super-2 number, since 2×10101221231² (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 (10101221239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050610615 + 5050610616.

It is an arithmetic number, because the mean of its divisors is an integer number (5050610616).

Almost surely, 2^10101221231 is an apocalyptic number.

10101221231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101221231 is an equidigital number, since it uses as much as digits as its factorization.

10101221231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10101221231 its reverse (13212210101), we get a palindrome (23313431332).

The spelling of 10101221231 in words is "ten billion, one hundred one million, two hundred twenty-one thousand, two hundred thirty-one".