121102901 has 2 divisors, whose sum is σ = 121102902. Its totient is φ = 121102900.

The previous prime is 121102867. The next prime is 121102963. The reversal of 121102901 is 109201121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117202276 + 3900625 = 10826^2 + 1975^2 .

It is a cyclic number.

It is not a de Polignac number, because 121102901 - 2⁶ = 121102837 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121102901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121102001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551450 + 60551451.

It is an arithmetic number, because the mean of its divisors is an integer number (60551451).

Almost surely, 2^121102901 is an apocalyptic number.

It is an amenable number.

121102901 is a deficient number, since it is larger than the sum of its proper divisors (1).

121102901 is an equidigital number, since it uses as much as digits as its factorization.

121102901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 121102901 is about 11004.6763241815. The cubic root of 121102901 is about 494.7489132329.

The spelling of 121102901 in words is "one hundred twenty-one million, one hundred two thousand, nine hundred one".