11222201112312 has 32 divisors (see below), whose sum is σ = 28062899660880. Its totient is φ = 3739747453440.

The previous prime is 11222201112259. The next prime is 11222201112313. The reversal of 11222201112312 is 21321110222211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222201112313) 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, 61547739 + ... + 61729802.

Almost surely, 2^{11222201112312} is an apocalyptic number.

11222201112312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11222201112312 is an abundant number, since it is smaller than the sum of its proper divisors (16840698548568).

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

11222201112312 is a wasteful number, since it uses less digits than its factorization.

11222201112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123281343 (or 123281339 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11222201112312 its reverse (21321110222211), we get a palindrome (32543311334523).

The spelling of 11222201112312 in words is "eleven trillion, two hundred twenty-two billion, two hundred one million, one hundred twelve thousand, three hundred twelve".