12122031536 has 20 divisors (see below), whose sum is σ = 23490725664. Its totient is φ = 6059908800.

The previous prime is 12122031533. The next prime is 12122031539. The reversal of 12122031536 is 63513022121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12122031533) and next prime (12122031539).

It is not an unprimeable number, because it can be changed into a prime (12122031533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25046 + ... + 157706.

Almost surely, 2^12122031536 is an apocalyptic number.

12122031536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12122031536 is a deficient number, since it is larger than the sum of its proper divisors (11368694128).

12122031536 is a wasteful number, since it uses less digits than its factorization.

12122031536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138380 (or 138374 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 12122031536 its reverse (63513022121), we get a palindrome (75635053657).

The spelling of 12122031536 in words is "twelve billion, one hundred twenty-two million, thirty-one thousand, five hundred thirty-six".