12202140491 has 2 divisors, whose sum is σ = 12202140492. Its totient is φ = 12202140490.

The previous prime is 12202140341. The next prime is 12202140493. The reversal of 12202140491 is 19404120221.

It is a strong prime.

It is an emirp because it is prime and its reverse (19404120221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12202140491 - 2¹⁴ = 12202124107 is a prime.

It is a Sophie Germain prime.

Together with 12202140493, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12202140491.

It is not a weakly prime, because it can be changed into another prime (12202140493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101070245 + 6101070246.

It is an arithmetic number, because the mean of its divisors is an integer number (6101070246).

Almost surely, 2^12202140491 is an apocalyptic number.

12202140491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202140491 is an equidigital number, since it uses as much as digits as its factorization.

12202140491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 12202140491 in words is "twelve billion, two hundred two million, one hundred forty thousand, four hundred ninety-one".