220111200000 has 648 divisors, whose sum is σ = 835511367600. Its totient is φ = 55572480000.

The previous prime is 220111199983. The next prime is 220111200017. The reversal of 220111200000 is 2111022.

It is an interprime number because it is at equal distance from previous prime (220111199983) and next prime (220111200017).

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 136799196 + ... + 136800804.

Almost surely, 2^220111200000 is an apocalyptic number.

220111200000 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 220111200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417755683800).

220111200000 is an abundant number, since it is smaller than the sum of its proper divisors (615400167600).

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

220111200000 is an equidigital number, since it uses as much as digits as its factorization.

220111200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 220111200000 its reverse (2111022), we get a palindrome (220113311022).

The spelling of 220111200000 in words is "two hundred twenty billion, one hundred eleven million, two hundred thousand".