222211222221020 has 12 divisors (see below), whose sum is σ = 466643566664184. Its totient is φ = 88884488888400.

The previous prime is 222211222221013. The next prime is 222211222221089. The reversal of 222211222221020 is 20122222112222.

222211222221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555280555506 + ... + 5555280555545.

It is an arithmetic number, because the mean of its divisors is an integer number (38886963888682).

Almost surely, 2^{222211222221020} is an apocalyptic number.

222211222221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222211222221020 is an abundant number, since it is smaller than the sum of its proper divisors (244432344443164).

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

222211222221020 is a wasteful number, since it uses less digits than its factorization.

222211222221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110561111060 (or 11110561111058 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222211222221020 its reverse (20122222112222), we get a palindrome (242333444333242).

The spelling of 222211222221020 in words is "two hundred twenty-two trillion, two hundred eleven billion, two hundred twenty-two million, two hundred twenty-one thousand, twenty".