20021002101222 has 8 divisors (see below), whose sum is σ = 40042004202456. Its totient is φ = 6673667367072.

The previous prime is 20021002101203. The next prime is 20021002101227. The reversal of 20021002101222 is 22210120012002.

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

20021002101222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021002101227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668416841763 + ... + 1668416841774.

It is an arithmetic number, because the mean of its divisors is an integer number (5005250525307).

Almost surely, 2^{20021002101222} is an apocalyptic number.

20021002101222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021002101222 is a wasteful number, since it uses less digits than its factorization.

20021002101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336833683542.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20021002101222 its reverse (22210120012002), we get a palindrome (42231122113224).

The spelling of 20021002101222 in words is "twenty trillion, twenty-one billion, two million, one hundred one thousand, two hundred twenty-two".