22212201221999 has 8 divisors (see below), whose sum is σ = 22325324677920. Its totient is φ = 22099081515616.

The previous prime is 22212201221963. The next prime is 22212201222007. The reversal of 22212201221999 is 99912210221222.

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-22212201221999 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 (22212201221099) 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, 11349782 + ... + 13162140.

It is an arithmetic number, because the mean of its divisors is an integer number (2790665584740).

Almost surely, 2^{22212201221999} is an apocalyptic number.

22212201221999 is a deficient number, since it is larger than the sum of its proper divisors (113123455921).

22212201221999 is a wasteful number, since it uses less digits than its factorization.

22212201221999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874769.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 22212201221999 in words is "twenty-two trillion, two hundred twelve billion, two hundred one million, two hundred twenty-one thousand, nine hundred ninety-nine".