222021212102 has 16 divisors (see below), whose sum is σ = 333743295600. Its totient is φ = 110773672800.

The previous prime is 222021212089. The next prime is 222021212173. The reversal of 222021212102 is 201212120222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948049 + ... + 2058867.

It is an arithmetic number, because the mean of its divisors is an integer number (20858955975).

Almost surely, 2^222021212102 is an apocalyptic number.

222021212102 is a deficient number, since it is larger than the sum of its proper divisors (111722083498).

222021212102 is a wasteful number, since it uses less digits than its factorization.

222021212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112951.

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

Adding to 222021212102 its reverse (201212120222), we get a palindrome (423233332324).

The spelling of 222021212102 in words is "two hundred twenty-two billion, twenty-one million, two hundred twelve thousand, one hundred two".