220021102230 has 32 divisors (see below), whose sum is σ = 528070600800. Its totient is φ = 58670076672.

The previous prime is 220021102193. The next prime is 220021102261. The reversal of 220021102230 is 32201120022.

It is a happy number.

It is a super-2 number, since 2×220021102230² (a number of 23 digits) contains 22 as substring.

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, 765106 + ... + 1012634.

It is an arithmetic number, because the mean of its divisors is an integer number (16502206275).

Almost surely, 2^220021102230 is an apocalyptic number.

220021102230 is an abundant number, since it is smaller than the sum of its proper divisors (308049498570).

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

220021102230 is a wasteful number, since it uses less digits than its factorization.

220021102230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277168.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 220021102230 its reverse (32201120022), we get a palindrome (252222222252).

The spelling of 220021102230 in words is "two hundred twenty billion, twenty-one million, one hundred two thousand, two hundred thirty".