11312212102 has 4 divisors (see below), whose sum is σ = 16968318156. Its totient is φ = 5656106050.

The previous prime is 11312212073. The next prime is 11312212127. The reversal of 11312212102 is 20121221311.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11312212102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828053024 + ... + 2828053027.

It is an arithmetic number, because the mean of its divisors is an integer number (4242079539).

Almost surely, 2^11312212102 is an apocalyptic number.

11312212102 is a deficient number, since it is larger than the sum of its proper divisors (5656106054).

11312212102 is an equidigital number, since it uses as much as digits as its factorization.

11312212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656106053.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11312212102 its reverse (20121221311), we get a palindrome (31433433413).

The spelling of 11312212102 in words is "eleven billion, three hundred twelve million, two hundred twelve thousand, one hundred two".