121020102112501 has 2 divisors, whose sum is σ = 121020102112502. Its totient is φ = 121020102112500.

The previous prime is 121020102112457. The next prime is 121020102112537. The reversal of 121020102112501 is 105211201020121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90875324451025 + 30144777661476 = 9532855^2 + 5490426^2 .

It is a cyclic number.

It is not a de Polignac number, because 121020102112501 - 2⁷ = 121020102112373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121020102112201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510051056250 + 60510051056251.

It is an arithmetic number, because the mean of its divisors is an integer number (60510051056251).

Almost surely, 2^{121020102112501} is an apocalyptic number.

It is an amenable number.

121020102112501 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020102112501 is an equidigital number, since it uses as much as digits as its factorization.

121020102112501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 121020102112501 its reverse (105211201020121), we get a palindrome (226231303132622).

The spelling of 121020102112501 in words is "one hundred twenty-one trillion, twenty billion, one hundred two million, one hundred twelve thousand, five hundred one".