2214402106561 has 2 divisors, whose sum is σ = 2214402106562. Its totient is φ = 2214402106560.

The previous prime is 2214402106559. The next prime is 2214402106591. The reversal of 2214402106561 is 1656012044122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2008685432961 + 205716673600 = 1417281^2 + 453560^2 .

It is a cyclic number.

It is not a de Polignac number, because 2214402106561 - 2¹ = 2214402106559 is a prime.

Together with 2214402106559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2214402106591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107201053280 + 1107201053281.

It is an arithmetic number, because the mean of its divisors is an integer number (1107201053281).

Almost surely, 2^{2214402106561} is an apocalyptic number.

It is an amenable number.

2214402106561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2214402106561 is an equidigital number, since it uses as much as digits as its factorization.

2214402106561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 2214402106561 in words is "two trillion, two hundred fourteen billion, four hundred two million, one hundred six thousand, five hundred sixty-one".