121620700 has 36 divisors (see below), whose sum is σ = 264561192. Its totient is φ = 48529600.

The previous prime is 121620689. The next prime is 121620713. The reversal of 121620700 is 7026121.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 47862 + ... + 50338.

It is an arithmetic number, because the mean of its divisors is an integer number (7348922).

Almost surely, 2^121620700 is an apocalyptic number.

121620700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121620700 is an abundant number, since it is smaller than the sum of its proper divisors (142940492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121620700 is a wasteful number, since it uses less digits than its factorization.

121620700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982 (or 2975 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 121620700 is about 11028.1775466303. The cubic root of 121620700 is about 495.4530423626.

Adding to 121620700 its reverse (7026121), we get a palindrome (128646821).

The spelling of 121620700 in words is "one hundred twenty-one million, six hundred twenty thousand, seven hundred".