200120020212221 has 4 divisors (see below), whose sum is σ = 200176439730912. Its totient is φ = 200063600693532.

The previous prime is 200120020212143. The next prime is 200120020212241. The reversal of 200120020212221 is 122212020021002.

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-200120020212221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200120020212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120020212241) 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, 28209754025 + ... + 28209761118.

It is an arithmetic number, because the mean of its divisors is an integer number (50044109932728).

Almost surely, 2^{200120020212221} is an apocalyptic number.

It is an amenable number.

200120020212221 is a deficient number, since it is larger than the sum of its proper divisors (56419518691).

200120020212221 is an equidigital number, since it uses as much as digits as its factorization.

200120020212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56419518690.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200120020212221 its reverse (122212020021002), we get a palindrome (322332040233223).

The spelling of 200120020212221 in words is "two hundred trillion, one hundred twenty billion, twenty million, two hundred twelve thousand, two hundred twenty-one".