222211100010001 has 2 divisors, whose sum is σ = 222211100010002. Its totient is φ = 222211100010000.

The previous prime is 222211100009963. The next prime is 222211100010023. The reversal of 222211100010001 is 100010001112222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188213046293776 + 33998053716225 = 13719076^2 + 5830785^2 .

It is a cyclic number.

It is not a de Polignac number, because 222211100010001 - 2²⁵ = 222211066455569 is a prime.

It is not a weakly prime, because it can be changed into another prime (222211100010701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111105550005000 + 111105550005001.

It is an arithmetic number, because the mean of its divisors is an integer number (111105550005001).

Almost surely, 2^{222211100010001} is an apocalyptic number.

It is an amenable number.

222211100010001 is a deficient number, since it is larger than the sum of its proper divisors (1).

222211100010001 is an equidigital number, since it uses as much as digits as its factorization.

222211100010001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 222211100010001 its reverse (100010001112222), we get a palindrome (322221101122223).

The spelling of 222211100010001 in words is "two hundred twenty-two trillion, two hundred eleven billion, one hundred million, ten thousand, one".