21220102201022 has 16 divisors (see below), whose sum is σ = 32013044017920. Its totient is φ = 10549225612632.

The previous prime is 21220102201021. The next prime is 21220102201069. The reversal of 21220102201022 is 22010220102212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220102201021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34213268 + ... + 34827975.

It is an arithmetic number, because the mean of its divisors is an integer number (2000815251120).

Almost surely, 2^{21220102201022} is an apocalyptic number.

21220102201022 is a deficient number, since it is larger than the sum of its proper divisors (10792941816898).

21220102201022 is a wasteful number, since it uses less digits than its factorization.

21220102201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69042127.

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

Adding to 21220102201022 its reverse (22010220102212), we get a palindrome (43230322303234).

The spelling of 21220102201022 in words is "twenty-one trillion, two hundred twenty billion, one hundred two million, two hundred one thousand, twenty-two".