12202661501 has 2 divisors, whose sum is σ = 12202661502. Its totient is φ = 12202661500.

The previous prime is 12202661467. The next prime is 12202661539. The reversal of 12202661501 is 10516620221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8274631225 + 3928030276 = 90965^2 + 62674^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202661501 - 2⁶ = 12202661437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12202661551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101330750 + 6101330751.

It is an arithmetic number, because the mean of its divisors is an integer number (6101330751).

Almost surely, 2^12202661501 is an apocalyptic number.

It is an amenable number.

12202661501 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202661501 is an equidigital number, since it uses as much as digits as its factorization.

12202661501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 12202661501 in words is "twelve billion, two hundred two million, six hundred sixty-one thousand, five hundred one".