200002101221 has 16 divisors (see below), whose sum is σ = 215744453568. Its totient is φ = 184311072000.

The previous prime is 200002101179. The next prime is 200002101223. The reversal of 200002101221 is 122101200002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 200002101221 - 2²² = 199997906917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200002101223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31000046 + ... + 31006496.

It is an arithmetic number, because the mean of its divisors is an integer number (13484028348).

Almost surely, 2^200002101221 is an apocalyptic number.

It is an amenable number.

200002101221 is a deficient number, since it is larger than the sum of its proper divisors (15742352347).

200002101221 is a wasteful number, since it uses less digits than its factorization.

200002101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10052.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200002101221 its reverse (122101200002), we get a palindrome (322103301223).

The spelling of 200002101221 in words is "two hundred billion, two million, one hundred one thousand, two hundred twenty-one".