12212321037 has 32 divisors (see below), whose sum is σ = 18877885440. Its totient is φ = 6877872000.

The previous prime is 12212320997. The next prime is 12212321111. The reversal of 12212321037 is 73012321221.

It is a happy number.

It is not a de Polignac number, because 12212321037 - 2¹⁴ = 12212304653 is a prime.

It is a super-2 number, since 2×12212321037² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12212320998 and 12212321016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212321137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3449014 + ... + 3452552.

It is an arithmetic number, because the mean of its divisors is an integer number (589933920).

Almost surely, 2^12212321037 is an apocalyptic number.

It is an amenable number.

12212321037 is a deficient number, since it is larger than the sum of its proper divisors (6665564403).

12212321037 is a wasteful number, since it uses less digits than its factorization.

12212321037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5873.

The product of its (nonzero) digits is 1008, while the sum is 24.

Adding to 12212321037 its reverse (73012321221), we get a palindrome (85224642258).

The spelling of 12212321037 in words is "twelve billion, two hundred twelve million, three hundred twenty-one thousand, thirty-seven".