222100001220001 has 16 divisors (see below), whose sum is σ = 229355251963200. Its totient is φ = 214971479083008.

The previous prime is 222100001219947. The next prime is 222100001220043. The reversal of 222100001220001 is 100022100001222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222100001220001 - 2¹¹ = 222100001217953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222100001220061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42200491 + ... + 47170768.

It is an arithmetic number, because the mean of its divisors is an integer number (14334703247700).

Almost surely, 2^{222100001220001} is an apocalyptic number.

It is an amenable number.

222100001220001 is a deficient number, since it is larger than the sum of its proper divisors (7255250743199).

222100001220001 is an equidigital number, since it uses as much as digits as its factorization.

222100001220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89371968.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222100001220001 its reverse (100022100001222), we get a palindrome (322122101221223).

The spelling of 222100001220001 in words is "two hundred twenty-two trillion, one hundred billion, one million, two hundred twenty thousand, one".