21200211022 has 8 divisors (see below), whose sum is σ = 31802329656. Its totient is φ = 10599434472.

The previous prime is 21200210981. The next prime is 21200211037. The reversal of 21200211022 is 22011200212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21200210993 and 21200211011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295053 + ... + 359800.

It is an arithmetic number, because the mean of its divisors is an integer number (3975291207).

Almost surely, 2^21200211022 is an apocalyptic number.

21200211022 is a deficient number, since it is larger than the sum of its proper divisors (10602118634).

21200211022 is a wasteful number, since it uses less digits than its factorization.

21200211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671042.

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

Adding to 21200211022 its reverse (22011200212), we get a palindrome (43211411234).

The spelling of 21200211022 in words is "twenty-one billion, two hundred million, two hundred eleven thousand, twenty-two".