222220122001 has 4 divisors (see below), whose sum is σ = 222234062400. Its totient is φ = 222206181604.

The previous prime is 222220121999. The next prime is 222220122031. The reversal of 222220122001 is 100221022222.

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 222220122001 - 2¹ = 222220121999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222220122031) 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, 6946261 + ... + 6978178.

It is an arithmetic number, because the mean of its divisors is an integer number (55558515600).

Almost surely, 2^222220122001 is an apocalyptic number.

It is an amenable number.

222220122001 is a deficient number, since it is larger than the sum of its proper divisors (13940399).

222220122001 is a wasteful number, since it uses less digits than its factorization.

222220122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13940398.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222220122001 its reverse (100221022222), we get a palindrome (322441144223).

The spelling of 222220122001 in words is "two hundred twenty-two billion, two hundred twenty million, one hundred twenty-two thousand, one".