121420115 has 8 divisors (see below), whose sum is σ = 146103360. Its totient is φ = 96869952.

The previous prime is 121420111. The next prime is 121420121. The reversal of 121420115 is 511024121.

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

It is a cyclic number.

It is not a de Polignac number, because 121420115 - 2² = 121420111 is a prime.

It is a super-2 number, since 2×121420115² = 29485688653226450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121420093 and 121420102.

It is not an unprimeable number, because it can be changed into a prime (121420111) 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, 31250 + ... + 34919.

It is an arithmetic number, because the mean of its divisors is an integer number (18262920).

Almost surely, 2^121420115 is an apocalyptic number.

121420115 is a deficient number, since it is larger than the sum of its proper divisors (24683245).

121420115 is an equidigital number, since it uses as much as digits as its factorization.

121420115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66541.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 121420115 is about 11019.0795895120. The cubic root of 121420115 is about 495.1805143757.

Adding to 121420115 its reverse (511024121), we get a palindrome (632444236).

The spelling of 121420115 in words is "one hundred twenty-one million, four hundred twenty thousand, one hundred fifteen".