222121222022 has 32 divisors (see below), whose sum is σ = 384058229760. Its totient is φ = 94378576320.

The previous prime is 222121222019. The next prime is 222121222031. The reversal of 222121222022 is 220222121222.

It is a junction number, because it is equal to n+sod(n) for n = 222121221985 and 222121222003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613322 + ... + 905762.

It is an arithmetic number, because the mean of its divisors is an integer number (12001819680).

Almost surely, 2^222121222022 is an apocalyptic number.

222121222022 is a deficient number, since it is larger than the sum of its proper divisors (161937007738).

222121222022 is a wasteful number, since it uses less digits than its factorization.

222121222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292916.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222121222022 its reverse (220222121222), we get a palindrome (442343343244).

The spelling of 222121222022 in words is "two hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-two thousand, twenty-two".