11312202222 has 12 divisors (see below), whose sum is σ = 24509771520. Its totient is φ = 3770734068.

The previous prime is 11312202221. The next prime is 11312202229. The reversal of 11312202222 is 22220221311.

It is a super-2 number, since 2×11312202222² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 628455679 = 11312202222 / (1 + 1 + 3 + 1 + 2 + 2 + 0 + 2 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 11312202195 and 11312202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312202221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314227822 + ... + 314227857.

It is an arithmetic number, because the mean of its divisors is an integer number (2042480960).

Almost surely, 2^11312202222 is an apocalyptic number.

11312202222 is an abundant number, since it is smaller than the sum of its proper divisors (13197569298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11312202222 is a wasteful number, since it uses less digits than its factorization.

11312202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628455687 (or 628455684 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11312202222 its reverse (22220221311), we get a palindrome (33532423533).

The spelling of 11312202222 in words is "eleven billion, three hundred twelve million, two hundred two thousand, two hundred twenty-two".