220221122000 has 160 divisors (see below), whose sum is σ = 583668678528. Its totient is φ = 79699200000.

The previous prime is 220221121979. The next prime is 220221122003. The reversal of 220221122000 is 221122022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221122003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4618280 + ... + 4665720.

Almost surely, 2^220221122000 is an apocalyptic number.

220221122000 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 220221122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291834339264).

220221122000 is an abundant number, since it is smaller than the sum of its proper divisors (363447556528).

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

220221122000 is a wasteful number, since it uses less digits than its factorization.

220221122000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47686 (or 47670 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220221122000 its reverse (221122022), we get a palindrome (220442244022).

The spelling of 220221122000 in words is "two hundred twenty billion, two hundred twenty-one million, one hundred twenty-two thousand".