222217872001 has 4 divisors (see below), whose sum is σ = 222227971504. Its totient is φ = 222207772500.

The previous prime is 222217871999. The next prime is 222217872011. The reversal of 222217872001 is 100278712222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222217872001 - 2¹ = 222217871999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222217872011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5016675 + ... + 5060776.

It is an arithmetic number, because the mean of its divisors is an integer number (55556992876).

Almost surely, 2^222217872001 is an apocalyptic number.

It is an amenable number.

222217872001 is a deficient number, since it is larger than the sum of its proper divisors (10099503).

222217872001 is a wasteful number, since it uses less digits than its factorization.

222217872001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10099502.

The product of its (nonzero) digits is 12544, while the sum is 34.

The spelling of 222217872001 in words is "two hundred twenty-two billion, two hundred seventeen million, eight hundred seventy-two thousand, one".