121200200200202 has 4 divisors (see below), whose sum is σ = 181800300300306. Its totient is φ = 60600100100100.

The previous prime is 121200200200199. The next prime is 121200200200217. The reversal of 121200200200202 is 202002002002121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 78918331192801 + 42281869007401 = 8883599^2 + 6502451^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30300050050049 + ... + 30300050050052.

Almost surely, 2^{121200200200202} is an apocalyptic number.

121200200200202 is a deficient number, since it is larger than the sum of its proper divisors (60600100100104).

121200200200202 is an equidigital number, since it uses as much as digits as its factorization.

121200200200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60600100100103.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 121200200200202 its reverse (202002002002121), we get a palindrome (323202202202323).

The spelling of 121200200200202 in words is "one hundred twenty-one trillion, two hundred billion, two hundred million, two hundred thousand, two hundred two".