121200220012210 has 8 divisors (see below), whose sum is σ = 218160396021996. Its totient is φ = 48480088004880.

The previous prime is 121200220012169. The next prime is 121200220012229. The reversal of 121200220012210 is 12210022002121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121032496181529 + 167723830681 = 11001477^2 + 409541^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6060011000601 + ... + 6060011000620.

Almost surely, 2^{121200220012210} is an apocalyptic number.

121200220012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121200220012210 is a deficient number, since it is larger than the sum of its proper divisors (96960176009786).

121200220012210 is a wasteful number, since it uses less digits than its factorization.

121200220012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120022001228.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121200220012210 its reverse (12210022002121), we get a palindrome (133410242014331).

The spelling of 121200220012210 in words is "one hundred twenty-one trillion, two hundred billion, two hundred twenty million, twelve thousand, two hundred ten".