20002210221 has 16 divisors (see below), whose sum is σ = 30488298624. Its totient is φ = 11426556864.

The previous prime is 20002210219. The next prime is 20002210231. The reversal of 20002210221 is 12201220002.

It is not a de Polignac number, because 20002210221 - 2¹ = 20002210219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20002210197 and 20002210206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002210201) 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, 60606 + ... + 208991.

It is an arithmetic number, because the mean of its divisors is an integer number (1905518664).

Almost surely, 2^20002210221 is an apocalyptic number.

20002210221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20002210221 is a deficient number, since it is larger than the sum of its proper divisors (10486088403).

20002210221 is a wasteful number, since it uses less digits than its factorization.

20002210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273140.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20002210221 its reverse (12201220002), we get a palindrome (32203430223).

The spelling of 20002210221 in words is "twenty billion, two million, two hundred ten thousand, two hundred twenty-one".