200120210001221 has 32 divisors (see below), whose sum is σ = 203085135792000. Its totient is φ = 197179179579648.

The previous prime is 200120210001199. The next prime is 200120210001227. The reversal of 200120210001221 is 122100012021002.

It is a cyclic number.

It is not a de Polignac number, because 200120210001221 - 2¹⁴ = 200120209984837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200120210001196 and 200120210001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120210001227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59330033891 + ... + 59330037263.

It is an arithmetic number, because the mean of its divisors is an integer number (6346410493500).

Almost surely, 2^{200120210001221} is an apocalyptic number.

It is an amenable number.

200120210001221 is a deficient number, since it is larger than the sum of its proper divisors (2964925790779).

200120210001221 is a wasteful number, since it uses less digits than its factorization.

200120210001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7253.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200120210001221 its reverse (122100012021002), we get a palindrome (322220222022223).

The spelling of 200120210001221 in words is "two hundred trillion, one hundred twenty billion, two hundred ten million, one thousand, two hundred twenty-one".