11222226749 has 4 divisors (see below), whose sum is σ = 11226087420. Its totient is φ = 11218366080.

The previous prime is 11222226739. The next prime is 11222226761. The reversal of 11222226749 is 94762222211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94762222211 = 269 ⋅352275919.

It can be written as a sum of positive squares in 2 ways, for example, as 8513752900 + 2708473849 = 92270^2 + 52043^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222226749 - 2¹² = 11222222653 is a prime.

It is a super-2 number, since 2×11222226749² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222226739) 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, 1925972 + ... + 1931789.

It is an arithmetic number, because the mean of its divisors is an integer number (2806521855).

Almost surely, 2^11222226749 is an apocalyptic number.

It is an amenable number.

11222226749 is a deficient number, since it is larger than the sum of its proper divisors (3860671).

11222226749 is an equidigital number, since it uses as much as digits as its factorization.

11222226749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860670.

The product of its digits is 48384, while the sum is 38.

The spelling of 11222226749 in words is "eleven billion, two hundred twenty-two million, two hundred twenty-six thousand, seven hundred forty-nine".