2104121101 has 2 divisors, whose sum is σ = 2104121102. Its totient is φ = 2104121100.

The previous prime is 2104121017. The next prime is 2104121119. The reversal of 2104121101 is 1011214012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1672728201 + 431392900 = 40899^2 + 20770^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104121101 - 2¹³ = 2104112909 is a prime.

It is a super-4 number, since 4×2104121101⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2104191101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052060550 + 1052060551.

It is an arithmetic number, because the mean of its divisors is an integer number (1052060551).

Almost surely, 2^2104121101 is an apocalyptic number.

It is an amenable number.

2104121101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104121101 is an equidigital number, since it uses as much as digits as its factorization.

2104121101 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.

The square root of 2104121101 is about 45870.6998093554. The cubic root of 2104121101 is about 1281.4162995374.

Adding to 2104121101 its reverse (1011214012), we get a palindrome (3115335113).

The spelling of 2104121101 in words is "two billion, one hundred four million, one hundred twenty-one thousand, one hundred one".