222120111021212 has 96 divisors (see below), whose sum is σ = 409947946974720. Its totient is φ = 105173291520000.

The previous prime is 222120111021203. The next prime is 222120111021269. The reversal of 222120111021212 is 212120111021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2720785658 + ... + 2720867294.

It is an arithmetic number, because the mean of its divisors is an integer number (4270291114320).

Almost surely, 2^{222120111021212} is an apocalyptic number.

It is an amenable number.

222120111021212 is a deficient number, since it is larger than the sum of its proper divisors (187827835953508).

222120111021212 is a wasteful number, since it uses less digits than its factorization.

222120111021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84303 (or 84301 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222120111021212 its reverse (212120111021222), we get a palindrome (434240222042434).

The spelling of 222120111021212 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred eleven million, twenty-one thousand, two hundred twelve".