11212001112222 has 12 divisors (see below), whose sum is σ = 24292669076520. Its totient is φ = 3737333704068.

The previous prime is 11212001112217. The next prime is 11212001112251. The reversal of 11212001112222 is 22221110021211.

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: 622888950679 = 11212001112222 / (1 + 1 + 2 + 1 + 2 + 0 + 0 + 1 + 1 + 1 + 2 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 11212001112195 and 11212001112204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311444475322 + ... + 311444475357.

It is an arithmetic number, because the mean of its divisors is an integer number (2024389089710).

Almost surely, 2^{11212001112222} is an apocalyptic number.

11212001112222 is an abundant number, since it is smaller than the sum of its proper divisors (13080667964298).

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

11212001112222 is a wasteful number, since it uses less digits than its factorization.

11212001112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622888950687 (or 622888950684 counting only the distinct ones).

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

Adding to 11212001112222 its reverse (22221110021211), we get a palindrome (33433111133433).

The spelling of 11212001112222 in words is "eleven trillion, two hundred twelve billion, one million, one hundred twelve thousand, two hundred twenty-two".