12212228956 has 12 divisors (see below), whose sum is σ = 21394411920. Its totient is φ = 6099539840.

The previous prime is 12212228933. The next prime is 12212228957. The reversal of 12212228956 is 65982221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212228957) 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, 1639480 + ... + 1646911.

It is an arithmetic number, because the mean of its divisors is an integer number (1782867660).

Almost surely, 2^12212228956 is an apocalyptic number.

It is an amenable number.

12212228956 is a deficient number, since it is larger than the sum of its proper divisors (9182182964).

12212228956 is a wasteful number, since it uses less digits than its factorization.

12212228956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287324 (or 3287322 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The spelling of 12212228956 in words is "twelve billion, two hundred twelve million, two hundred twenty-eight thousand, nine hundred fifty-six".