11222001097 has 4 divisors (see below), whose sum is σ = 11223265156. Its totient is φ = 11220737040.

The previous prime is 11222001083. The next prime is 11222001137. The reversal of 11222001097 is 79010022211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3897380041 + 7324621056 = 62429^2 + 85584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222001097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222001697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618618 + ... + 636499.

It is an arithmetic number, because the mean of its divisors is an integer number (2805816289).

Almost surely, 2^11222001097 is an apocalyptic number.

It is an amenable number.

11222001097 is a deficient number, since it is larger than the sum of its proper divisors (1264059).

11222001097 is an equidigital number, since it uses as much as digits as its factorization.

11222001097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264058.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 11222001097 in words is "eleven billion, two hundred twenty-two million, one thousand, ninety-seven".