12202001881 has 2 divisors, whose sum is σ = 12202001882. Its totient is φ = 12202001880.

The previous prime is 12202001857. The next prime is 12202001887. The reversal of 12202001881 is 18810020221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10544209225 + 1657792656 = 102685^2 + 40716^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202001881 - 2²⁵ = 12168447449 is a prime.

It is a super-2 number, since 2×12202001881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12202001887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101000940 + 6101000941.

It is an arithmetic number, because the mean of its divisors is an integer number (6101000941).

Almost surely, 2^12202001881 is an apocalyptic number.

It is an amenable number.

12202001881 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202001881 is an equidigital number, since it uses as much as digits as its factorization.

12202001881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 25.

The spelling of 12202001881 in words is "twelve billion, two hundred two million, one thousand, eight hundred eighty-one".