121214807 has 16 divisors (see below), whose sum is σ = 147924480. Its totient is φ = 97064352.

The previous prime is 121214767. The next prime is 121214827. The reversal of 121214807 is 708412121.

It is not a de Polignac number, because 121214807 - 2¹² = 121210711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121214827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1832 + ... + 15677.

It is an arithmetic number, because the mean of its divisors is an integer number (9245280).

Almost surely, 2^121214807 is an apocalyptic number.

121214807 is a deficient number, since it is larger than the sum of its proper divisors (26709673).

121214807 is a wasteful number, since it uses less digits than its factorization.

121214807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17582.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 121214807 is about 11009.7596249873. The cubic root of 121214807 is about 494.9012584054.

Adding to 121214807 its reverse (708412121), we get a palindrome (829626928).

The spelling of 121214807 in words is "one hundred twenty-one million, two hundred fourteen thousand, eight hundred seven".