11222121022011 has 24 divisors (see below), whose sum is σ = 16226345940480. Its totient is φ = 7473746905776.

The previous prime is 11222121021967. The next prime is 11222121022033. The reversal of 11222121022011 is 11022012122211.

11222121022011 is a `hidden beast` number, since 1 + 1 + 2 + 221 + 210 + 220 + 11 = 666.

It is not a de Polignac number, because 11222121022011 - 2⁹ = 11222121021499 is a prime.

It is a super-2 number, since 2×11222121022011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11222121022081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89945770 + ... + 90070448.

It is an arithmetic number, because the mean of its divisors is an integer number (676097747520).

Almost surely, 2^{11222121022011} is an apocalyptic number.

11222121022011 is a deficient number, since it is larger than the sum of its proper divisors (5004224918469).

11222121022011 is a wasteful number, since it uses less digits than its factorization.

11222121022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134855 (or 134852 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11222121022011 its reverse (11022012122211), we get a palindrome (22244133144222).

The spelling of 11222121022011 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, twenty-two thousand, eleven".