12202121231 has 2 divisors, whose sum is σ = 12202121232. Its totient is φ = 12202121230.

The previous prime is 12202121209. The next prime is 12202121237. The reversal of 12202121231 is 13212120221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12202121231 - 2¹⁴ = 12202104847 is a prime.

It is a super-2 number, since 2×12202121231² (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 (12202121237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101060615 + 6101060616.

It is an arithmetic number, because the mean of its divisors is an integer number (6101060616).

Almost surely, 2^12202121231 is an apocalyptic number.

12202121231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202121231 is an equidigital number, since it uses as much as digits as its factorization.

12202121231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12202121231 its reverse (13212120221), we get a palindrome (25414241452).

The spelling of 12202121231 in words is "twelve billion, two hundred two million, one hundred twenty-one thousand, two hundred thirty-one".