11222089961 has 2 divisors, whose sum is σ = 11222089962. Its totient is φ = 11222089960.

The previous prime is 11222089927. The next prime is 11222089981. The reversal of 11222089961 is 16998022211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7935246400 + 3286843561 = 89080^2 + 57331^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222089961 - 2⁶ = 11222089897 is a prime.

It is not a weakly prime, because it can be changed into another prime (11222089981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611044980 + 5611044981.

It is an arithmetic number, because the mean of its divisors is an integer number (5611044981).

Almost surely, 2^11222089961 is an apocalyptic number.

It is an amenable number.

11222089961 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222089961 is an equidigital number, since it uses as much as digits as its factorization.

11222089961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 41.

The spelling of 11222089961 in words is "eleven billion, two hundred twenty-two million, eighty-nine thousand, nine hundred sixty-one".