2221102212001 has 2 divisors, whose sum is σ = 2221102212002. Its totient is φ = 2221102212000.

The previous prime is 2221102211987. The next prime is 2221102212023. The reversal of 2221102212001 is 1002122011222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1471250128401 + 749852083600 = 1212951^2 + 865940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221102212001 - 2⁵ = 2221102211969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221102212041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110551106000 + 1110551106001.

It is an arithmetic number, because the mean of its divisors is an integer number (1110551106001).

Almost surely, 2^{2221102212001} is an apocalyptic number.

It is an amenable number.

2221102212001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221102212001 is an equidigital number, since it uses as much as digits as its factorization.

2221102212001 is an evil number, because the sum of its binary digits is even.

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

Adding to 2221102212001 its reverse (1002122011222), we get a palindrome (3223224223223).

The spelling of 2221102212001 in words is "two trillion, two hundred twenty-one billion, one hundred two million, two hundred twelve thousand, one".