2211102120401 has 2 divisors, whose sum is σ = 2211102120402. Its totient is φ = 2211102120400.

The previous prime is 2211102120391. The next prime is 2211102120431. The reversal of 2211102120401 is 1040212011122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2131013120401 + 80089000000 = 1459799^2 + 283000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211102120401 - 2¹⁸ = 2211101858257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2211102120401.

It is not a weakly prime, because it can be changed into another prime (2211102120431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105551060200 + 1105551060201.

It is an arithmetic number, because the mean of its divisors is an integer number (1105551060201).

Almost surely, 2^{2211102120401} is an apocalyptic number.

It is an amenable number.

2211102120401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211102120401 is an equidigital number, since it uses as much as digits as its factorization.

2211102120401 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 17.

Adding to 2211102120401 its reverse (1040212011122), we get a palindrome (3251314131523).

The spelling of 2211102120401 in words is "two trillion, two hundred eleven billion, one hundred two million, one hundred twenty thousand, four hundred one".