121132401 has 16 divisors (see below), whose sum is σ = 177218496. Its totient is φ = 73135296.

The previous prime is 121132399. The next prime is 121132411. The reversal of 121132401 is 104231121.

It is not a de Polignac number, because 121132401 - 2¹ = 121132399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121132411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27235 + ... + 31368.

It is an arithmetic number, because the mean of its divisors is an integer number (11076156).

Almost surely, 2^121132401 is an apocalyptic number.

It is an amenable number.

121132401 is a deficient number, since it is larger than the sum of its proper divisors (56086095).

121132401 is a wasteful number, since it uses less digits than its factorization.

121132401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58672.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 121132401 is about 11006.0165818519. The cubic root of 121132401 is about 494.7890826752.

Adding to 121132401 its reverse (104231121), we get a palindrome (225363522).

The spelling of 121132401 in words is "one hundred twenty-one million, one hundred thirty-two thousand, four hundred one".