222122000021 has 8 divisors (see below), whose sum is σ = 222678490944. Its totient is φ = 221566164480.

The previous prime is 222121999997. The next prime is 222122000069. The reversal of 222122000021 is 120000221222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222122000021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122008021) 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, 518390 + ... + 844376.

It is an arithmetic number, because the mean of its divisors is an integer number (27834811368).

Almost surely, 2^222122000021 is an apocalyptic number.

It is an amenable number.

222122000021 is a deficient number, since it is larger than the sum of its proper divisors (556490923).

222122000021 is a wasteful number, since it uses less digits than its factorization.

222122000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327691.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 222122000021 its reverse (120000221222), we get a palindrome (342122221243).

The spelling of 222122000021 in words is "two hundred twenty-two billion, one hundred twenty-two million, twenty-one", and thus it is an aban number.