222202101200221 has 4 divisors (see below), whose sum is σ = 222269455584000. Its totient is φ = 222134746816444.

The previous prime is 222202101200197. The next prime is 222202101200251. The reversal of 222202101200221 is 122002101202222.

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 222202101200221 - 2³⁹ = 221652345386333 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 (222202101200251) 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, 33677186941 + ... + 33677193538.

It is an arithmetic number, because the mean of its divisors is an integer number (55567363896000).

Almost surely, 2^{222202101200221} is an apocalyptic number.

It is an amenable number.

222202101200221 is a deficient number, since it is larger than the sum of its proper divisors (67354383779).

222202101200221 is an equidigital number, since it uses as much as digits as its factorization.

222202101200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67354383778.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222202101200221 its reverse (122002101202222), we get a palindrome (344204202402443).

The spelling of 222202101200221 in words is "two hundred twenty-two trillion, two hundred two billion, one hundred one million, two hundred thousand, two hundred twenty-one".