21220201021022 has 8 divisors (see below), whose sum is σ = 32059296507000. Its totient is φ = 10533768852024.

The previous prime is 21220201020989. The next prime is 21220201021037. The reversal of 21220201021022 is 22012010202212.

It is a happy number.

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

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, 38165828897 + ... + 38165829452.

It is an arithmetic number, because the mean of its divisors is an integer number (4007412063375).

Almost surely, 2^{21220201021022} is an apocalyptic number.

21220201021022 is a deficient number, since it is larger than the sum of its proper divisors (10839095485978).

21220201021022 is a wasteful number, since it uses less digits than its factorization.

21220201021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76331658490.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21220201021022 its reverse (22012010202212), we get a palindrome (43232211223234).

The spelling of 21220201021022 in words is "twenty-one trillion, two hundred twenty billion, two hundred one million, twenty-one thousand, twenty-two".