1021100121241 has 2 divisors, whose sum is σ = 1021100121242. Its totient is φ = 1021100121240.

The previous prime is 1021100121191. The next prime is 1021100121253. The reversal of 1021100121241 is 1421210011201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 665699337216 + 355400784025 = 815904^2 + 596155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021100121241 - 2²⁷ = 1020965903513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021100124241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510550060620 + 510550060621.

It is an arithmetic number, because the mean of its divisors is an integer number (510550060621).

Almost surely, 2^{1021100121241} is an apocalyptic number.

It is an amenable number.

1021100121241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021100121241 is an equidigital number, since it uses as much as digits as its factorization.

1021100121241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1021100121241 its reverse (1421210011201), we get a palindrome (2442310132442).

The spelling of 1021100121241 in words is "one trillion, twenty-one billion, one hundred million, one hundred twenty-one thousand, two hundred forty-one".