222211221001 has 8 divisors (see below), whose sum is σ = 277042561344. Its totient is φ = 173151600720.

The previous prime is 222211220969. The next prime is 222211221007. The reversal of 222211221001 is 100122112222.

It is a happy number.

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

It is not a de Polignac number, because 222211221001 - 2⁵ = 222211220969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222211221007) 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, 1442929930 + ... + 1442930083.

It is an arithmetic number, because the mean of its divisors is an integer number (34630320168).

Almost surely, 2^222211221001 is an apocalyptic number.

It is an amenable number.

222211221001 is a deficient number, since it is larger than the sum of its proper divisors (54831340343).

222211221001 is a wasteful number, since it uses less digits than its factorization.

222211221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885860031.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222211221001 its reverse (100122112222), we get a palindrome (322333333223).

The spelling of 222211221001 in words is "two hundred twenty-two billion, two hundred eleven million, two hundred twenty-one thousand, one".