222212222200021 has 8 divisors (see below), whose sum is σ = 226061914233024. Its totient is φ = 218382528567840.

The previous prime is 222212222199983. The next prime is 222212222200051. The reversal of 222212222200021 is 120002222212222.

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

It is a cyclic number.

It is not a de Polignac number, because 222212222200021 - 2⁴³ = 213416129177813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222212222199965 and 222212222200001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212222200051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4999577791 + ... + 4999622236.

It is an arithmetic number, because the mean of its divisors is an integer number (28257739279128).

Almost surely, 2^{222212222200021} is an apocalyptic number.

It is an amenable number.

222212222200021 is a deficient number, since it is larger than the sum of its proper divisors (3849692033003).

222212222200021 is an equidigital number, since it uses as much as digits as its factorization.

222212222200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9999200411.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 222212222200021 its reverse (120002222212222), we get a palindrome (342214444412243).

The spelling of 222212222200021 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, two hundred thousand, twenty-one".