222120220101212 has 48 divisors (see below), whose sum is σ = 402743850395040. Its totient is φ = 107115746304000.

The previous prime is 222120220101209. The next prime is 222120220101233. The reversal of 222120220101212 is 212101022021222.

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, 741308 + ... + 21090044.

It is an arithmetic number, because the mean of its divisors is an integer number (8390496883230).

Almost surely, 2^{222120220101212} is an apocalyptic number.

It is an amenable number.

222120220101212 is a deficient number, since it is larger than the sum of its proper divisors (180623630293828).

222120220101212 is a wasteful number, since it uses less digits than its factorization.

222120220101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20349542 (or 20349540 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222120220101212 its reverse (212101022021222), we get a palindrome (434221242122434).

The spelling of 222120220101212 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred twenty million, one hundred one thousand, two hundred twelve".