121670650 has 24 divisors (see below), whose sum is σ = 231574464. Its totient is φ = 47535600.

The previous prime is 121670611. The next prime is 121670651. The reversal of 121670650 is 56076121.

It is not an unprimeable number, because it can be changed into a prime (121670651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26146 + ... + 30445.

It is an arithmetic number, because the mean of its divisors is an integer number (9648936).

Almost surely, 2^121670650 is an apocalyptic number.

121670650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121670650 is a deficient number, since it is larger than the sum of its proper divisors (109903814).

121670650 is a wasteful number, since it uses less digits than its factorization.

121670650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56646 (or 56641 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 121670650 is about 11030.4419675732. The cubic root of 121670650 is about 495.5208611144.

The spelling of 121670650 in words is "one hundred twenty-one million, six hundred seventy thousand, six hundred fifty".