20021100020222 has 32 divisors (see below), whose sum is σ = 35764562646720. Its totient is φ = 8224121606400.

The previous prime is 20021100020221. The next prime is 20021100020237. The reversal of 20021100020222 is 22202000112002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 20021100020197 and 20021100020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021100020221) 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, 179919029 + ... + 180030272.

It is an arithmetic number, because the mean of its divisors is an integer number (1117642582710).

Almost surely, 2^{20021100020222} is an apocalyptic number.

20021100020222 is a deficient number, since it is larger than the sum of its proper divisors (15743462626498).

20021100020222 is a wasteful number, since it uses less digits than its factorization.

20021100020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359949476.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20021100020222 its reverse (22202000112002), we get a palindrome (42223100132224).

The spelling of 20021100020222 in words is "twenty trillion, twenty-one billion, one hundred million, twenty thousand, two hundred twenty-two".