121200010 has 8 divisors (see below), whose sum is σ = 218160036. Its totient is φ = 48480000.

The previous prime is 121199989. The next prime is 121200011. The reversal of 121200010 is 10002121.

It can be written as a sum of positive squares in 2 ways, for example, as 118788201 + 2411809 = 10899^2 + 1553^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 121199966 and 121200002.

It is not an unprimeable number, because it can be changed into a prime (121200011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6059991 + ... + 6060010.

Almost surely, 2^121200010 is an apocalyptic number.

121200010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121200010 is a deficient number, since it is larger than the sum of its proper divisors (96960026).

121200010 is a wasteful number, since it uses less digits than its factorization.

121200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120008.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 121200010 is about 11009.0876097886. The cubic root of 121200010 is about 494.8811196339.

Adding to 121200010 its reverse (10002121), we get a palindrome (131202131).

The spelling of 121200010 in words is "one hundred twenty-one million, two hundred thousand, ten".