11921126 has 16 divisors (see below), whose sum is σ = 20482080. Its totient is φ = 5097600.

The previous prime is 11921101. The next prime is 11921137. The reversal of 11921126 is 62112911.

It is a happy number.

It is a super-2 number, since 2×11921126² = 284226490215752, which contains 22 as substring.

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, 9326 + ... + 10526.

It is an arithmetic number, because the mean of its divisors is an integer number (1280130).

Almost surely, 2^11921126 is an apocalyptic number.

11921126 is a deficient number, since it is larger than the sum of its proper divisors (8560954).

11921126 is a wasteful number, since it uses less digits than its factorization.

11921126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919.

The product of its digits is 216, while the sum is 23.

The square root of 11921126 is about 3452.6983650473. The cubic root of 11921126 is about 228.4401444379.

The spelling of 11921126 in words is "eleven million, nine hundred twenty-one thousand, one hundred twenty-six".