20110220220222 has 48 divisors (see below), whose sum is σ = 47795862507120. Its totient is φ = 6060337574400.

The previous prime is 20110220220187. The next prime is 20110220220253. The reversal of 20110220220222 is 22202202201102.

20110220220222 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 0 + 220 + 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 = 20110220220195 and 20110220220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280535347 + ... + 280607022.

It is an arithmetic number, because the mean of its divisors is an integer number (995747135565).

Almost surely, 2^{20110220220222} is an apocalyptic number.

20110220220222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20110220220222 is an abundant number, since it is smaller than the sum of its proper divisors (27685642286898).

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

20110220220222 is a wasteful number, since it uses less digits than its factorization.

20110220220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561142569 (or 561142566 counting only the distinct ones).

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

Adding to 20110220220222 its reverse (22202202201102), we get a palindrome (42312422421324).

The spelling of 20110220220222 in words is "twenty trillion, one hundred ten billion, two hundred twenty million, two hundred twenty thousand, two hundred twenty-two".