110100201201989 has 2 divisors, whose sum is σ = 110100201201990. Its totient is φ = 110100201201988.

The previous prime is 110100201201967. The next prime is 110100201202039. The reversal of 110100201201989 is 989102102001011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88492439189764 + 21607762012225 = 9407042^2 + 4648415^2 .

It is a cyclic number.

It is not a de Polignac number, because 110100201201989 - 2⁸ = 110100201201733 is a prime.

It is a super-2 number, since 2×110100201201989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110100201207989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55050100600994 + 55050100600995.

It is an arithmetic number, because the mean of its divisors is an integer number (55050100600995).

Almost surely, 2^{110100201201989} is an apocalyptic number.

It is an amenable number.

110100201201989 is a deficient number, since it is larger than the sum of its proper divisors (1).

110100201201989 is an equidigital number, since it uses as much as digits as its factorization.

110100201201989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 110100201201989 in words is "one hundred ten trillion, one hundred billion, two hundred one million, two hundred one thousand, nine hundred eighty-nine".