220021111222200 has 288 divisors, whose sum is σ = 743232706959600. Its totient is φ = 58329059604480.

The previous prime is 220021111222147. The next prime is 220021111222369. The reversal of 220021111222200 is 2222111120022.

It is a happy number.

220021111222200 is a `hidden beast` number, since 2 + 20 + 0 + 211 + 11 + 222 + 200 = 666.

220021111222200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 456838719 + ... + 457320081.

Almost surely, 2^{220021111222200} is an apocalyptic number.

220021111222200 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 220021111222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371616353479800).

220021111222200 is an abundant number, since it is smaller than the sum of its proper divisors (523211595737400).

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

220021111222200 is a wasteful number, since it uses less digits than its factorization.

220021111222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482871 (or 482859 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220021111222200 its reverse (2222111120022), we get a palindrome (222243222342222).

The spelling of 220021111222200 in words is "two hundred twenty trillion, twenty-one billion, one hundred eleven million, two hundred twenty-two thousand, two hundred".