12211312038 has 16 divisors (see below), whose sum is σ = 24423713136. Its totient is φ = 4070255840.

The previous prime is 12211312037. The next prime is 12211312049. The reversal of 12211312038 is 83021311221.

It is a super-2 number, since 2×12211312038² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211311999 and 12211312017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211312037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217828 + ... + 268088.

It is an arithmetic number, because the mean of its divisors is an integer number (1526482071).

Almost surely, 2^12211312038 is an apocalyptic number.

12211312038 is an abundant number, since it is smaller than the sum of its proper divisors (12212401098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211312038 is a wasteful number, since it uses less digits than its factorization.

12211312038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90759.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 12211312038 its reverse (83021311221), we get a palindrome (95232623259).

The spelling of 12211312038 in words is "twelve billion, two hundred eleven million, three hundred twelve thousand, thirty-eight".