12210251653 has 2 divisors, whose sum is σ = 12210251654. Its totient is φ = 12210251652.

The previous prime is 12210251623. The next prime is 12210251659. The reversal of 12210251653 is 35615201221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10723223809 + 1487027844 = 103553^2 + 38562^2 .

It is a cyclic number.

It is not a de Polignac number, because 12210251653 - 2⁵ = 12210251621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12210251659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105125826 + 6105125827.

It is an arithmetic number, because the mean of its divisors is an integer number (6105125827).

Almost surely, 2^12210251653 is an apocalyptic number.

It is an amenable number.

12210251653 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210251653 is an equidigital number, since it uses as much as digits as its factorization.

12210251653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 12210251653 its reverse (35615201221), we get a palindrome (47825452874).

It can be divided in two parts, 122102 and 51653, that added together give a triangular number (173755 = T₅₈₉).

The spelling of 12210251653 in words is "twelve billion, two hundred ten million, two hundred fifty-one thousand, six hundred fifty-three".