121415011 has 2 divisors, whose sum is σ = 121415012. Its totient is φ = 121415010.

The previous prime is 121415009. The next prime is 121415027. The reversal of 121415011 is 110514121.

It is an a-pointer prime, because the next prime (121415027) can be obtained adding 121415011 to its sum of digits (16).

It is a weak prime.

It is an emirp because it is prime and its reverse (110514121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121415011 - 2¹ = 121415009 is a prime.

It is a super-2 number, since 2×121415011² = 29483209792260242, which contains 22 as substring.

Together with 121415009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121415051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60707505 + 60707506.

It is an arithmetic number, because the mean of its divisors is an integer number (60707506).

Almost surely, 2^121415011 is an apocalyptic number.

121415011 is a deficient number, since it is larger than the sum of its proper divisors (1).

121415011 is an equidigital number, since it uses as much as digits as its factorization.

121415011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 121415011 is about 11018.8479887872. The cubic root of 121415011 is about 495.1735758308.

Adding to 121415011 its reverse (110514121), we get a palindrome (231929132).

The spelling of 121415011 in words is "one hundred twenty-one million, four hundred fifteen thousand, eleven".