110100200010121 has 2 divisors, whose sum is σ = 110100200010122. Its totient is φ = 110100200010120.

The previous prime is 110100200010091. The next prime is 110100200010133. The reversal of 110100200010121 is 121010002001011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77465715734521 + 32634484275600 = 8801461^2 + 5712660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110100200010121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110100200010098 and 110100200010107.

It is not a weakly prime, because it can be changed into another prime (110100200010181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55050100005060 + 55050100005061.

It is an arithmetic number, because the mean of its divisors is an integer number (55050100005061).

Almost surely, 2^{110100200010121} is an apocalyptic number.

It is an amenable number.

110100200010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

110100200010121 is an equidigital number, since it uses as much as digits as its factorization.

110100200010121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 110100200010121 its reverse (121010002001011), we get a palindrome (231110202011132).

The spelling of 110100200010121 in words is "one hundred ten trillion, one hundred billion, two hundred million, ten thousand, one hundred twenty-one".