121120001 has 8 divisors (see below), whose sum is σ = 126640320. Its totient is φ = 115620912.

The previous prime is 121119983. The next prime is 121120009. The reversal of 121120001 is 100021121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121120001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121120009) 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, 6995 + ... + 17063.

It is an arithmetic number, because the mean of its divisors is an integer number (15830040).

Almost surely, 2^121120001 is an apocalyptic number.

It is an amenable number.

121120001 is a deficient number, since it is larger than the sum of its proper divisors (5520319).

121120001 is a wasteful number, since it uses less digits than its factorization.

121120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10615.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 121120001 is about 11005.4532391901. The cubic root of 121120001 is about 494.7721986873.

Adding to 121120001 its reverse (100021121), we get a palindrome (221141122).

It can be divided in two parts, 1211 and 20001, that added together give a palindrome (21212).

The spelling of 121120001 in words is "one hundred twenty-one million, one hundred twenty thousand, one".