11222126287 has 8 divisors (see below), whose sum is σ = 11292817536. Its totient is φ = 11151476952.

The previous prime is 11222126281. The next prime is 11222126327. The reversal of 11222126287 is 78262122211.

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 11222126287 - 2¹¹ = 11222124239 is a prime.

It is a super-2 number, since 2×11222126287² (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 (11222126281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660108 + ... + 676894.

It is an arithmetic number, because the mean of its divisors is an integer number (1411602192).

Almost surely, 2^11222126287 is an apocalyptic number.

11222126287 is a deficient number, since it is larger than the sum of its proper divisors (70691249).

11222126287 is a wasteful number, since it uses less digits than its factorization.

11222126287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20957.

The product of its digits is 10752, while the sum is 34.

Adding to 11222126287 its reverse (78262122211), we get a palindrome (89484248498).

The spelling of 11222126287 in words is "eleven billion, two hundred twenty-two million, one hundred twenty-six thousand, two hundred eighty-seven".