121200220010 has 8 divisors (see below), whose sum is σ = 218160396036. Its totient is φ = 48480088000.

The previous prime is 121200219997. The next prime is 121200220049. The reversal of 121200220010 is 10022002121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120990578569 + 209641441 = 347837^2 + 14479^2 .

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 = 121200219973 and 121200220000.

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 3 ways as a sum of consecutive naturals, for example, 6060010991 + ... + 6060011010.

Almost surely, 2^121200220010 is an apocalyptic number.

121200220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121200220010 is a deficient number, since it is larger than the sum of its proper divisors (96960176026).

121200220010 is a wasteful number, since it uses less digits than its factorization.

121200220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120022008.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121200220010 its reverse (10022002121), we get a palindrome (131222222131).

The spelling of 121200220010 in words is "one hundred twenty-one billion, two hundred million, two hundred twenty thousand, ten".