222110221020 has 48 divisors (see below), whose sum is σ = 621931716000. Its totient is φ = 59227192576.

The previous prime is 222110221019. The next prime is 222110221049. The reversal of 222110221020 is 20122011222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2154574 + ... + 2255306.

It is an arithmetic number, because the mean of its divisors is an integer number (12956910750).

Almost surely, 2^222110221020 is an apocalyptic number.

222110221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222110221020 is an abundant number, since it is smaller than the sum of its proper divisors (399821494980).

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

222110221020 is a wasteful number, since it uses less digits than its factorization.

222110221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137494 (or 137492 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222110221020 its reverse (20122011222), we get a palindrome (242232232242).

The spelling of 222110221020 in words is "two hundred twenty-two billion, one hundred ten million, two hundred twenty-one thousand, twenty".