121105401 has 8 divisors (see below), whose sum is σ = 161532384. Its totient is φ = 80707680.

The previous prime is 121105393. The next prime is 121105409. The reversal of 121105401 is 104501121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121105393) and next prime (121105409).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121105401 - 2³ = 121105393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121105409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5605 + ... + 16541.

It is an arithmetic number, because the mean of its divisors is an integer number (20191548).

Almost surely, 2^121105401 is an apocalyptic number.

It is an amenable number.

121105401 is a deficient number, since it is larger than the sum of its proper divisors (40426983).

121105401 is a wasteful number, since it uses less digits than its factorization.

121105401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14631.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 121105401 is about 11004.7899116703. The cubic root of 121105401 is about 494.7523176759.

Adding to 121105401 its reverse (104501121), we get a palindrome (225606522).

The spelling of 121105401 in words is "one hundred twenty-one million, one hundred five thousand, four hundred one".