121476121 has 4 divisors (see below), whose sum is σ = 130820452. Its totient is φ = 112131792.

The previous prime is 121476109. The next prime is 121476149. The reversal of 121476121 is 121674121.

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 16516096 + 104960025 = 4064^2 + 10245^2 .

It is a cyclic number.

It is not a de Polignac number, because 121476121 - 2⁹ = 121475609 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121476151) 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, 4672146 + ... + 4672171.

It is an arithmetic number, because the mean of its divisors is an integer number (32705113).

Almost surely, 2^121476121 is an apocalyptic number.

It is an amenable number.

121476121 is a deficient number, since it is larger than the sum of its proper divisors (9344331).

121476121 is an equidigital number, since it uses as much as digits as its factorization.

121476121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9344330.

The product of its digits is 672, while the sum is 25.

The square root of 121476121 is about 11021.6206158623. The cubic root of 121476121 is about 495.2566379981.

The spelling of 121476121 in words is "one hundred twenty-one million, four hundred seventy-six thousand, one hundred twenty-one".