222021212210 has 32 divisors (see below), whose sum is σ = 456837604992. Its totient is φ = 76103516160.

The previous prime is 222021212207. The next prime is 222021212227. The reversal of 222021212210 is 12212120222.

It is a happy 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, 76751 + ... + 670770.

It is an arithmetic number, because the mean of its divisors is an integer number (14276175156).

Almost surely, 2^222021212210 is an apocalyptic number.

222021212210 is an abundant number, since it is smaller than the sum of its proper divisors (234816392782).

222021212210 is a wasteful number, since it uses less digits than its factorization.

222021212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751778.

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

Adding to 222021212210 its reverse (12212120222), we get a palindrome (234233332432).

The spelling of 222021212210 in words is "two hundred twenty-two billion, twenty-one million, two hundred twelve thousand, two hundred ten".