11122557906 has 16 divisors (see below), whose sum is σ = 22266704448. Its totient is φ = 3703921200.

The previous prime is 11122557893. The next prime is 11122557923. The reversal of 11122557906 is 60975522111.

It is a super-2 number, since 2×11122557906² (a number of 21 digits) contains 22 as substring.

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, 892825 + ... + 905196.

It is an arithmetic number, because the mean of its divisors is an integer number (1391669028).

Almost surely, 2^11122557906 is an apocalyptic number.

11122557906 is an abundant number, since it is smaller than the sum of its proper divisors (11144146542).

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

11122557906 is a wasteful number, since it uses less digits than its factorization.

11122557906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799057.

The product of its (nonzero) digits is 37800, while the sum is 39.

The spelling of 11122557906 in words is "eleven billion, one hundred twenty-two million, five hundred fifty-seven thousand, nine hundred six".