221000020102012 has 48 divisors (see below), whose sum is σ = 402062919596352. Its totient is φ = 106208229611520.

The previous prime is 221000020101937. The next prime is 221000020102021. The reversal of 221000020102012 is 210201020000122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221000020101983 and 221000020102001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213448 + ... + 21024880.

It is an arithmetic number, because the mean of its divisors is an integer number (8376310824924).

Almost surely, 2^{221000020102012} is an apocalyptic number.

It is an amenable number.

221000020102012 is a deficient number, since it is larger than the sum of its proper divisors (181062899494340).

221000020102012 is a wasteful number, since it uses less digits than its factorization.

221000020102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20812438 (or 20812436 counting only the distinct ones).

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

Adding to 221000020102012 its reverse (210201020000122), we get a palindrome (431201040102134).

The spelling of 221000020102012 in words is "two hundred twenty-one trillion, twenty million, one hundred two thousand, twelve".