121267401 has 4 divisors (see below), whose sum is σ = 161689872. Its totient is φ = 80844932.

The previous prime is 121267373. The next prime is 121267403. The reversal of 121267401 is 104762121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121267401 - 2⁵ = 121267369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121267403) 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, 20211231 + ... + 20211236.

It is an arithmetic number, because the mean of its divisors is an integer number (40422468).

Almost surely, 2^121267401 is an apocalyptic number.

It is an amenable number.

121267401 is a deficient number, since it is larger than the sum of its proper divisors (40422471).

121267401 is an equidigital number, since it uses as much as digits as its factorization.

121267401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40422470.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 121267401 is about 11012.1478831334. The cubic root of 121267401 is about 494.9728257708.

The spelling of 121267401 in words is "one hundred twenty-one million, two hundred sixty-seven thousand, four hundred one".