222121101212222 has 8 divisors (see below), whose sum is σ = 333184544340672. Its totient is φ = 111059586432000.

The previous prime is 222121101212191. The next prime is 222121101212233. The reversal of 222121101212222 is 222212101121222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×222121101212222³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481799054 + ... + 482259857.

It is an arithmetic number, because the mean of its divisors is an integer number (41648068042584).

Almost surely, 2^{222121101212222} is an apocalyptic number.

222121101212222 is a deficient number, since it is larger than the sum of its proper divisors (111063443128450).

222121101212222 is a wasteful number, since it uses less digits than its factorization.

222121101212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964174114.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 222121101212222 its reverse (222212101121222), we get a palindrome (444333202333444).

The spelling of 222121101212222 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred one million, two hundred twelve thousand, two hundred twenty-two".