12211158950 has 24 divisors (see below), whose sum is σ = 23023896168. Its totient is φ = 4817551680.

The previous prime is 12211158893. The next prime is 12211158959. The reversal of 12211158950 is 5985111221.

It is a super-2 number, since 2×12211158950² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12211158950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211158959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1669112 + ... + 1676411.

It is an arithmetic number, because the mean of its divisors is an integer number (959329007).

Almost surely, 2^12211158950 is an apocalyptic number.

12211158950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211158950 is a deficient number, since it is larger than the sum of its proper divisors (10812737218).

12211158950 is a wasteful number, since it uses less digits than its factorization.

12211158950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345608 (or 3345603 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 35.

The spelling of 12211158950 in words is "twelve billion, two hundred eleven million, one hundred fifty-eight thousand, nine hundred fifty".