2222120100401 has 2 divisors, whose sum is σ = 2222120100402. Its totient is φ = 2222120100400.

The previous prime is 2222120100397. The next prime is 2222120100437. The reversal of 2222120100401 is 1040010212222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1886230306801 + 335889793600 = 1373401^2 + 579560^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222120100401 - 2² = 2222120100397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2222120100401.

It is not a weakly prime, because it can be changed into another prime (2222120100491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111060050200 + 1111060050201.

It is an arithmetic number, because the mean of its divisors is an integer number (1111060050201).

Almost surely, 2^{2222120100401} is an apocalyptic number.

It is an amenable number.

2222120100401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222120100401 is an equidigital number, since it uses as much as digits as its factorization.

2222120100401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2222120100401 its reverse (1040010212222), we get a palindrome (3262130312623).

The spelling of 2222120100401 in words is "two trillion, two hundred twenty-two billion, one hundred twenty million, one hundred thousand, four hundred one".