220023221212120 has 128 divisors (see below), whose sum is σ = 524452057560000. Its totient is φ = 82842163402752.

The previous prime is 220023221212061. The next prime is 220023221212133. The reversal of 220023221212120 is 21212122320022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220023221212091 and 220023221212100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3940992366 + ... + 3941048194.

Almost surely, 2^{220023221212120} is an apocalyptic number.

220023221212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220023221212120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262226028780000).

220023221212120 is an abundant number, since it is smaller than the sum of its proper divisors (304428836347880).

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

220023221212120 is a wasteful number, since it uses less digits than its factorization.

220023221212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89045 (or 89041 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 220023221212120 its reverse (21212122320022), we get a palindrome (241235343532142).

The spelling of 220023221212120 in words is "two hundred twenty trillion, twenty-three billion, two hundred twenty-one million, two hundred twelve thousand, one hundred twenty".