11912621226 has 32 divisors (see below), whose sum is σ = 26000206848. Its totient is φ = 3608630640.

The previous prime is 11912621183. The next prime is 11912621249. The reversal of 11912621226 is 62212621911.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169665 + ... + 229371.

It is an arithmetic number, because the mean of its divisors is an integer number (812506464).

Almost surely, 2^11912621226 is an apocalyptic number.

11912621226 is an abundant number, since it is smaller than the sum of its proper divisors (14087585622).

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

11912621226 is a wasteful number, since it uses less digits than its factorization.

11912621226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62746.

The product of its digits is 5184, while the sum is 33.

The spelling of 11912621226 in words is "eleven billion, nine hundred twelve million, six hundred twenty-one thousand, two hundred twenty-six".