11222611555 has 8 divisors (see below), whose sum is σ = 13668136272. Its totient is φ = 8844087648.

The previous prime is 11222611549. The next prime is 11222611577. The reversal of 11222611555 is 55511622211.

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

It is a cyclic number.

It is not a de Polignac number, because 11222611555 - 2¹⁷ = 11222480483 is a prime.

It is a super-2 number, since 2×11222611555² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16749832 + ... + 16750501.

It is an arithmetic number, because the mean of its divisors is an integer number (1708517034).

Almost surely, 2^11222611555 is an apocalyptic number.

11222611555 is a deficient number, since it is larger than the sum of its proper divisors (2445524717).

11222611555 is an equidigital number, since it uses as much as digits as its factorization.

11222611555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33500405.

The product of its digits is 6000, while the sum is 31.

The spelling of 11222611555 in words is "eleven billion, two hundred twenty-two million, six hundred eleven thousand, five hundred fifty-five".