20022110220222 has 128 divisors (see below), whose sum is σ = 50654194560000. Its totient is φ = 5802893965440.

The previous prime is 20022110220197. The next prime is 20022110220289. The reversal of 20022110220222 is 22202201122002.

20022110220222 is a `hidden beast` number, since 2 + 0 + 0 + 221 + 1 + 0 + 220 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20022110220195 and 20022110220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 137489904 + ... + 137635452.

It is an arithmetic number, because the mean of its divisors is an integer number (395735895000).

Almost surely, 2^{20022110220222} is an apocalyptic number.

20022110220222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20022110220222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25327097280000).

20022110220222 is an abundant number, since it is smaller than the sum of its proper divisors (30632084339778).

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

20022110220222 is a wasteful number, since it uses less digits than its factorization.

20022110220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155663 (or 155657 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20022110220222 its reverse (22202201122002), we get a palindrome (42224311342224).

The spelling of 20022110220222 in words is "twenty trillion, twenty-two billion, one hundred ten million, two hundred twenty thousand, two hundred twenty-two".