121262501 has 2 divisors, whose sum is σ = 121262502. Its totient is φ = 121262500.

The previous prime is 121262497. The next prime is 121262527. The reversal of 121262501 is 105262121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117202276 + 4060225 = 10826^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 121262501 - 2² = 121262497 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121262591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60631250 + 60631251.

It is an arithmetic number, because the mean of its divisors is an integer number (60631251).

Almost surely, 2^121262501 is an apocalyptic number.

It is an amenable number.

121262501 is a deficient number, since it is larger than the sum of its proper divisors (1).

121262501 is an equidigital number, since it uses as much as digits as its factorization.

121262501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 121262501 is about 11011.9253993114. The cubic root of 121262501 is about 494.9661589625.

The spelling of 121262501 in words is "one hundred twenty-one million, two hundred sixty-two thousand, five hundred one".