11312211220233 has 48 divisors (see below), whose sum is σ = 19846527353856. Its totient is φ = 5567185248480.

The previous prime is 11312211220169. The next prime is 11312211220237. The reversal of 11312211220233 is 33202211221311.

It is not a de Polignac number, because 11312211220233 - 2⁶ = 11312211220169 is a prime.

It is a super-2 number, since 2×11312211220233² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11312211220237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67742941 + ... + 67909722.

It is an arithmetic number, because the mean of its divisors is an integer number (413469319872).

Almost surely, 2^{11312211220233} is an apocalyptic number.

It is an amenable number.

11312211220233 is a deficient number, since it is larger than the sum of its proper divisors (8534316133623).

11312211220233 is a wasteful number, since it uses less digits than its factorization.

11312211220233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135652722 (or 135652703 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 11312211220233 its reverse (33202211221311), we get a palindrome (44514422441544).

The spelling of 11312211220233 in words is "eleven trillion, three hundred twelve billion, two hundred eleven million, two hundred twenty thousand, two hundred thirty-three".