222210202221212 has 12 divisors (see below), whose sum is σ = 389127272079000. Its totient is φ = 111030981627216.

The previous prime is 222210202221211. The next prime is 222210202221323. The reversal of 222210202221212 is 212122202012222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222210202221211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18529864103 + ... + 18529876094.

It is an arithmetic number, because the mean of its divisors is an integer number (32427272673250).

Almost surely, 2^{222210202221212} is an apocalyptic number.

It is an amenable number.

222210202221212 is a deficient number, since it is larger than the sum of its proper divisors (166917069857788).

222210202221212 is a wasteful number, since it uses less digits than its factorization.

222210202221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37059741700 (or 37059741698 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222210202221212 its reverse (212122202012222), we get a palindrome (434332404233434).

The spelling of 222210202221212 in words is "two hundred twenty-two trillion, two hundred ten billion, two hundred two million, two hundred twenty-one thousand, two hundred twelve".