222211102110020 has 24 divisors (see below), whose sum is σ = 466644224710104. Its totient is φ = 88884267457536.

The previous prime is 222211102110017. The next prime is 222211102110043. The reversal of 222211102110020 is 20011201112222.

It can be written as a sum of positive squares in 4 ways, for example, as 23425522560064 + 198785579549956 = 4839992^2 + 14099134^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66509 + ... + 21081428.

It is an arithmetic number, because the mean of its divisors is an integer number (19443509362921).

Almost surely, 2^{222211102110020} is an apocalyptic number.

222211102110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222211102110020 is an abundant number, since it is smaller than the sum of its proper divisors (244433122600084).

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

222211102110020 is a wasteful number, since it uses less digits than its factorization.

222211102110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21673319 (or 21673317 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222211102110020 its reverse (20011201112222), we get a palindrome (242222303222242).

The spelling of 222211102110020 in words is "two hundred twenty-two trillion, two hundred eleven billion, one hundred two million, one hundred ten thousand, twenty".