222121223201 has 8 divisors (see below), whose sum is σ = 231796518720. Its totient is φ = 212447415312.

The previous prime is 222121223173. The next prime is 222121223213. The reversal of 222121223201 is 102322121222.

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

It is a de Polignac number, because none of the positive numbers 2^k-222121223201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222121223221) 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, 61250 + ... + 669323.

It is an arithmetic number, because the mean of its divisors is an integer number (28974564840).

Almost surely, 2^222121223201 is an apocalyptic number.

It is an amenable number.

222121223201 is a deficient number, since it is larger than the sum of its proper divisors (9675295519).

222121223201 is a wasteful number, since it uses less digits than its factorization.

222121223201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743815.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 222121223201 its reverse (102322121222), we get a palindrome (324443344423).

The spelling of 222121223201 in words is "two hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-three thousand, two hundred one".