222221122210201 has 4 divisors (see below), whose sum is σ = 233916970747600. Its totient is φ = 210525273672804.

The previous prime is 222221122210177. The next prime is 222221122210223. The reversal of 222221122210201 is 102012221122222.

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 a de Polignac number, because none of the positive numbers 2^k-222221122210201 is a prime.

It is a super-2 number, since 2×222221122210201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221122211201) 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, 5847924268671 + ... + 5847924268708.

It is an arithmetic number, because the mean of its divisors is an integer number (58479242686900).

Almost surely, 2^{222221122210201} is an apocalyptic number.

It is an amenable number.

222221122210201 is a deficient number, since it is larger than the sum of its proper divisors (11695848537399).

222221122210201 is a wasteful number, since it uses less digits than its factorization.

222221122210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11695848537398.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222221122210201 its reverse (102012221122222), we get a palindrome (324233343332423).

The spelling of 222221122210201 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred ten thousand, two hundred one".