12212263158 has 16 divisors (see below), whose sum is σ = 24426813936. Its totient is φ = 4070373120.

The previous prime is 12212263093. The next prime is 12212263169. The reversal of 12212263158 is 85136221221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21523 + ... + 157758.

It is an arithmetic number, because the mean of its divisors is an integer number (1526675871).

Almost surely, 2^12212263158 is an apocalyptic number.

12212263158 is an abundant number, since it is smaller than the sum of its proper divisors (12214550778).

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

12212263158 is a wasteful number, since it uses less digits than its factorization.

12212263158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190639.

The product of its digits is 11520, while the sum is 33.

Adding to 12212263158 its reverse (85136221221), we get a palindrome (97348484379).

The spelling of 12212263158 in words is "twelve billion, two hundred twelve million, two hundred sixty-three thousand, one hundred fifty-eight".