221210333022 has 128 divisors (see below), whose sum is σ = 532315929600. Its totient is φ = 59946163200.

The previous prime is 221210332999. The next prime is 221210333059. The reversal of 221210333022 is 220333012122.

It is a happy number.

221210333022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221210333022² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 221210333022.

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, 81057754 + ... + 81060482.

It is an arithmetic number, because the mean of its divisors is an integer number (4158718200).

Almost surely, 2^221210333022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221210333022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266157964800).

221210333022 is an abundant number, since it is smaller than the sum of its proper divisors (311105596578).

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

221210333022 is a wasteful number, since it uses less digits than its factorization.

221210333022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 221210333022 its reverse (220333012122), we get a palindrome (441543345144).

The spelling of 221210333022 in words is "two hundred twenty-one billion, two hundred ten million, three hundred thirty-three thousand, twenty-two".