2110001221201 has 2 divisors, whose sum is σ = 2110001221202. Its totient is φ = 2110001221200.

The previous prime is 2110001221087. The next prime is 2110001221219. The reversal of 2110001221201 is 1021221000112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1974654490176 + 135346731025 = 1405224^2 + 367895^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110001221201 - 2¹³ = 2110001213009 is a prime.

It is a super-2 number, since 2×2110001221201² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2110001321201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055000610600 + 1055000610601.

It is an arithmetic number, because the mean of its divisors is an integer number (1055000610601).

Almost surely, 2^{2110001221201} is an apocalyptic number.

It is an amenable number.

2110001221201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110001221201 is an equidigital number, since it uses as much as digits as its factorization.

2110001221201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2110001221201 its reverse (1021221000112), we get a palindrome (3131222221313).

The spelling of 2110001221201 in words is "two trillion, one hundred ten billion, one million, two hundred twenty-one thousand, two hundred one".