2111100221401 has 2 divisors, whose sum is σ = 2111100221402. Its totient is φ = 2111100221400.

The previous prime is 2111100221393. The next prime is 2111100221431. The reversal of 2111100221401 is 1041220011112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1973811445776 + 137288775625 = 1404924^2 + 370525^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111100221401 - 2³ = 2111100221393 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111100221431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055550110700 + 1055550110701.

It is an arithmetic number, because the mean of its divisors is an integer number (1055550110701).

Almost surely, 2^{2111100221401} is an apocalyptic number.

It is an amenable number.

2111100221401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111100221401 is an equidigital number, since it uses as much as digits as its factorization.

2111100221401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2111100221401 its reverse (1041220011112), we get a palindrome (3152320232513).

The spelling of 2111100221401 in words is "two trillion, one hundred eleven billion, one hundred million, two hundred twenty-one thousand, four hundred one".