121778350 has 12 divisors (see below), whose sum is σ = 226507824. Its totient is φ = 48711320.

The previous prime is 121778339. The next prime is 121778351. The reversal of 121778350 is 53877121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121778351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1217734 + ... + 1217833.

It is an arithmetic number, because the mean of its divisors is an integer number (18875652).

Almost surely, 2^121778350 is an apocalyptic number.

121778350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121778350 is a deficient number, since it is larger than the sum of its proper divisors (104729474).

121778350 is a wasteful number, since it uses less digits than its factorization.

121778350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435579 (or 2435574 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 121778350 is about 11035.3228317073. The cubic root of 121778350 is about 495.6670258027.

The spelling of 121778350 in words is "one hundred twenty-one million, seven hundred seventy-eight thousand, three hundred fifty".