200021221102 has 4 divisors (see below), whose sum is σ = 300031831656. Its totient is φ = 100010610550.

The previous prime is 200021221097. The next prime is 200021221207. The reversal of 200021221102 is 201122120002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201122120002 = 2 ⋅100561060001.

It is a super-2 number, since 2×200021221102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005305274 + ... + 50005305277.

It is an arithmetic number, because the mean of its divisors is an integer number (75007957914).

Almost surely, 2^200021221102 is an apocalyptic number.

200021221102 is a deficient number, since it is larger than the sum of its proper divisors (100010610554).

200021221102 is a wasteful number, since it uses less digits than its factorization.

200021221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100010610553.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200021221102 its reverse (201122120002), we get a palindrome (401143341104).

The spelling of 200021221102 in words is "two hundred billion, twenty-one million, two hundred twenty-one thousand, one hundred two".