11122961 has 8 divisors (see below), whose sum is σ = 12217920. Its totient is φ = 10078992.

The previous prime is 11122949. The next prime is 11122987. The reversal of 11122961 is 16922111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11122961 is a prime.

It is a super-2 number, since 2×11122961² = 247440522815042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11122561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12290 + ... + 13163.

It is an arithmetic number, because the mean of its divisors is an integer number (1527240).

Almost surely, 2^11122961 is an apocalyptic number.

It is an amenable number.

11122961 is a deficient number, since it is larger than the sum of its proper divisors (1094959).

11122961 is a wasteful number, since it uses less digits than its factorization.

11122961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25495.

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

The square root of 11122961 is about 3335.1103430022. The cubic root of 11122961 is about 223.2236155710.

The spelling of 11122961 in words is "eleven million, one hundred twenty-two thousand, nine hundred sixty-one".