222012202122 has 48 divisors (see below), whose sum is σ = 490169242368. Its totient is φ = 72597863520.

The previous prime is 222012202057. The next prime is 222012202127. The reversal of 222012202122 is 221202210222.

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 = 222012202095 and 222012202104.

It is not an unprimeable number, because it can be changed into a prime (222012202127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10963747 + ... + 10983977.

It is an arithmetic number, because the mean of its divisors is an integer number (10211859216).

Almost surely, 2^222012202122 is an apocalyptic number.

222012202122 is an abundant number, since it is smaller than the sum of its proper divisors (268157040246).

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

222012202122 is a wasteful number, since it uses less digits than its factorization.

222012202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31795 (or 31792 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222012202122 its reverse (221202210222), we get a palindrome (443214412344).

The spelling of 222012202122 in words is "two hundred twenty-two billion, twelve million, two hundred two thousand, one hundred twenty-two".