110110200012721 has 2 divisors, whose sum is σ = 110110200012722. Its totient is φ = 110110200012720.

The previous prime is 110110200012697. The next prime is 110110200012727. The reversal of 110110200012721 is 127210002011011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94476242172321 + 15633957840400 = 9719889^2 + 3953980^2 .

It is a cyclic number.

It is not a de Polignac number, because 110110200012721 - 2¹³ = 110110200004529 is a prime.

It is a super-2 number, since 2×110110200012721² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (110110200012727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55055100006360 + 55055100006361.

It is an arithmetic number, because the mean of its divisors is an integer number (55055100006361).

Almost surely, 2^{110110200012721} is an apocalyptic number.

It is an amenable number.

110110200012721 is a deficient number, since it is larger than the sum of its proper divisors (1).

110110200012721 is an equidigital number, since it uses as much as digits as its factorization.

110110200012721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 110110200012721 its reverse (127210002011011), we get a palindrome (237320202023732).

The spelling of 110110200012721 in words is "one hundred ten trillion, one hundred ten billion, two hundred million, twelve thousand, seven hundred twenty-one".