222212121000001 has 8 divisors (see below), whose sum is σ = 244813353830208. Its totient is φ = 200010909990000.

The previous prime is 222212120999993. The next prime is 222212121000011. The reversal of 222212121000001 is 100000121212222.

It is a happy number.

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 222212121000001 - 2³ = 222212120999993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222212121000011) 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, 100005453885 + ... + 100005456106.

It is an arithmetic number, because the mean of its divisors is an integer number (30601669228776).

Almost surely, 2^{222212121000001} is an apocalyptic number.

It is an amenable number.

222212121000001 is a deficient number, since it is larger than the sum of its proper divisors (22601232830207).

222212121000001 is a wasteful number, since it uses less digits than its factorization.

222212121000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200010910103.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222212121000001 its reverse (100000121212222), we get a palindrome (322212242212223).

The spelling of 222212121000001 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred twenty-one million, one", and thus it is an aban number.