121314010778 has 8 divisors (see below), whose sum is σ = 182369203572. Its totient is φ = 60524276256.

The previous prime is 121314010733. The next prime is 121314010793. The reversal of 121314010778 is 877010413121.

121314010778 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 105785611009 + 15528399769 = 325247^2 + 124613^2 .

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

It is a super-2 number, since 2×121314010778² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66363425 + ... + 66365252.

Almost surely, 2^121314010778 is an apocalyptic number.

121314010778 is a deficient number, since it is larger than the sum of its proper divisors (61055192794).

121314010778 is a wasteful number, since it uses less digits than its factorization.

121314010778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132729136.

The product of its (nonzero) digits is 9408, while the sum is 35.

Adding to 121314010778 its reverse (877010413121), we get a palindrome (998324423899).

The spelling of 121314010778 in words is "one hundred twenty-one billion, three hundred fourteen million, ten thousand, seven hundred seventy-eight".