11322220251 has 12 divisors (see below), whose sum is σ = 15932654952. Its totient is φ = 7150875264.

The previous prime is 11322220219. The next prime is 11322220253. The reversal of 11322220251 is 15202222311.

It is not a de Polignac number, because 11322220251 - 2⁵ = 11322220219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11322220253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5226166 + ... + 5228331.

It is an arithmetic number, because the mean of its divisors is an integer number (1327721246).

Almost surely, 2^11322220251 is an apocalyptic number.

11322220251 is a deficient number, since it is larger than the sum of its proper divisors (4610434701).

11322220251 is a wasteful number, since it uses less digits than its factorization.

11322220251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10454538 (or 10454519 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 11322220251 its reverse (15202222311), we get a palindrome (26524442562).

The spelling of 11322220251 in words is "eleven billion, three hundred twenty-two million, two hundred twenty thousand, two hundred fifty-one".