122202261251 has 12 divisors (see below), whose sum is σ = 142159394448. Its totient is φ = 104740563312.

The previous prime is 122202261241. The next prime is 122202261257. The reversal of 122202261251 is 152162202221.

It is a de Polignac number, because none of the positive numbers 2^k-122202261251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122202261251.

It is not an unprimeable number, because it can be changed into a prime (122202261257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2113610 + ... + 2170656.

It is an arithmetic number, because the mean of its divisors is an integer number (11846616204).

Almost surely, 2^122202261251 is an apocalyptic number.

122202261251 is a deficient number, since it is larger than the sum of its proper divisors (19957133197).

122202261251 is an equidigital number, since it uses as much as digits as its factorization.

122202261251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100778 (or 100771 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 122202261251 its reverse (152162202221), we get a palindrome (274364463472).

The spelling of 122202261251 in words is "one hundred twenty-two billion, two hundred two million, two hundred sixty-one thousand, two hundred fifty-one".