121020210121241 has 2 divisors, whose sum is σ = 121020210121242. Its totient is φ = 121020210121240.

The previous prime is 121020210121219. The next prime is 121020210121249. The reversal of 121020210121241 is 142121012020121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95679013849225 + 25341196272016 = 9781565^2 + 5034004^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121020210121241 is a prime.

It is not a weakly prime, because it can be changed into another prime (121020210121249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510105060620 + 60510105060621.

It is an arithmetic number, because the mean of its divisors is an integer number (60510105060621).

Almost surely, 2^{121020210121241} is an apocalyptic number.

It is an amenable number.

121020210121241 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020210121241 is an equidigital number, since it uses as much as digits as its factorization.

121020210121241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121020210121241 its reverse (142121012020121), we get a palindrome (263141222141362).

The spelling of 121020210121241 in words is "one hundred twenty-one trillion, twenty billion, two hundred ten million, one hundred twenty-one thousand, two hundred forty-one".