112021212222 has 32 divisors (see below), whose sum is σ = 249078243360. Its totient is φ = 37319071680.

The previous prime is 112021212211. The next prime is 112021212223. The reversal of 112021212222 is 222212120211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 112021212195 and 112021212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021212223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497029 + ... + 686352.

It is an arithmetic number, because the mean of its divisors is an integer number (7783695105).

Almost surely, 2^112021212222 is an apocalyptic number.

112021212222 is an abundant number, since it is smaller than the sum of its proper divisors (137057031138).

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

112021212222 is a wasteful number, since it uses less digits than its factorization.

112021212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185145 (or 1185139 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 112021212222 its reverse (222212120211), we get a palindrome (334233332433).

The spelling of 112021212222 in words is "one hundred twelve billion, twenty-one million, two hundred twelve thousand, two hundred twenty-two".