12261722630 has 16 divisors (see below), whose sum is σ = 22072677120. Its totient is φ = 4904338752.

The previous prime is 12261722593. The next prime is 12261722657. The reversal of 12261722630 is 3622716221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139931 + ... + 210009.

It is an arithmetic number, because the mean of its divisors is an integer number (1379542320).

Almost surely, 2^12261722630 is an apocalyptic number.

12261722630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12261722630 is a deficient number, since it is larger than the sum of its proper divisors (9810954490).

12261722630 is a wasteful number, since it uses less digits than its factorization.

12261722630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87583.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 12261722630 in words is "twelve billion, two hundred sixty-one million, seven hundred twenty-two thousand, six hundred thirty".