222221101022 has 4 divisors (see below), whose sum is σ = 333331651536. Its totient is φ = 111110550510.

The previous prime is 222221100911. The next prime is 222221101043. The reversal of 222221101022 is 220101122222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555275254 + ... + 55555275257.

It is an arithmetic number, because the mean of its divisors is an integer number (83332912884).

Almost surely, 2^222221101022 is an apocalyptic number.

222221101022 is a deficient number, since it is larger than the sum of its proper divisors (111110550514).

222221101022 is a wasteful number, since it uses less digits than its factorization.

222221101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111110550513.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222221101022 its reverse (220101122222), we get a palindrome (442322223244).

The spelling of 222221101022 in words is "two hundred twenty-two billion, two hundred twenty-one million, one hundred one thousand, twenty-two".