12252421126 has 32 divisors (see below), whose sum is σ = 20930400000. Its totient is φ = 5324779680.

The previous prime is 12252421109. The next prime is 12252421157. The reversal of 12252421126 is 62112425221.

It is a happy number.

It is a super-2 number, since 2×12252421126² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12252421094 and 12252421103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1630125 + ... + 1637623.

It is an arithmetic number, because the mean of its divisors is an integer number (654075000).

Almost surely, 2^12252421126 is an apocalyptic number.

12252421126 is a deficient number, since it is larger than the sum of its proper divisors (8677978874).

12252421126 is a wasteful number, since it uses less digits than its factorization.

12252421126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10764.

The product of its digits is 3840, while the sum is 28.

Adding to 12252421126 its reverse (62112425221), we get a palindrome (74364846347).

The spelling of 12252421126 in words is "twelve billion, two hundred fifty-two million, four hundred twenty-one thousand, one hundred twenty-six".