200012220210121 has 4 divisors (see below), whose sum is σ = 218195149320144. Its totient is φ = 181829291100100.

The previous prime is 200012220210071. The next prime is 200012220210149. The reversal of 200012220210121 is 121012022210002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200012220210121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200012220210095 and 200012220210104.

It is not an unprimeable number, because it can be changed into a prime (200012220210421) 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, 9091464554995 + ... + 9091464555016.

It is an arithmetic number, because the mean of its divisors is an integer number (54548787330036).

Almost surely, 2^{200012220210121} is an apocalyptic number.

It is an amenable number.

200012220210121 is a deficient number, since it is larger than the sum of its proper divisors (18182929110023).

200012220210121 is a wasteful number, since it uses less digits than its factorization.

200012220210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18182929110022.

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

Adding to 200012220210121 its reverse (121012022210002), we get a palindrome (321024242420123).

The spelling of 200012220210121 in words is "two hundred trillion, twelve billion, two hundred twenty million, two hundred ten thousand, one hundred twenty-one".