121246502501 has 4 divisors (see below), whose sum is σ = 121269501612. Its totient is φ = 121223503392.

The previous prime is 121246502483. The next prime is 121246502513. The reversal of 121246502501 is 105205642121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25304537476 + 95941965025 = 159074^2 + 309745^2 .

It is a cyclic number.

It is not a de Polignac number, because 121246502501 - 2⁶ = 121246502437 is a prime.

It is a super-4 number, since 4×121246502501⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121246502581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11491646 + ... + 11502191.

It is an arithmetic number, because the mean of its divisors is an integer number (30317375403).

Almost surely, 2^121246502501 is an apocalyptic number.

It is an amenable number.

121246502501 is a deficient number, since it is larger than the sum of its proper divisors (22999111).

121246502501 is an equidigital number, since it uses as much as digits as its factorization.

121246502501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22999110.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 121246502501 in words is "one hundred twenty-one billion, two hundred forty-six million, five hundred two thousand, five hundred one".