222120222201212 has 24 divisors (see below), whose sum is σ = 388932115892880. Its totient is φ = 110996761944960.

The previous prime is 222120222201203. The next prime is 222120222201331. The reversal of 222120222201212 is 212102222021222.

It is a super-2 number, since 2×222120222201212² (a number of 29 digits) contains 22 as substring.

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, 1113781787 + ... + 1113981197.

It is an arithmetic number, because the mean of its divisors is an integer number (16205504828870).

Almost surely, 2^{222120222201212} is an apocalyptic number.

It is an amenable number.

222120222201212 is a deficient number, since it is larger than the sum of its proper divisors (166811893691668).

222120222201212 is a wasteful number, since it uses less digits than its factorization.

222120222201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356861 (or 356859 counting only the distinct ones).

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

Adding to 222120222201212 its reverse (212102222021222), we get a palindrome (434222444222434).

The spelling of 222120222201212 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred twenty-two million, two hundred one thousand, two hundred twelve".