220224215400 has 192 divisors, whose sum is σ = 789624460800. Its totient is φ = 49730415360.

The previous prime is 220224215381. The next prime is 220224215461. The reversal of 220224215400 is 4512422022.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32731 + ... + 664469.

It is an arithmetic number, because the mean of its divisors is an integer number (4112627400).

Almost surely, 2^220224215400 is an apocalyptic number.

220224215400 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 220224215400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394812230400).

220224215400 is an abundant number, since it is smaller than the sum of its proper divisors (569400245400).

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

220224215400 is a wasteful number, since it uses less digits than its factorization.

220224215400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631848 (or 631839 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 220224215400 its reverse (4512422022), we get a palindrome (224736637422).

The spelling of 220224215400 in words is "two hundred twenty billion, two hundred twenty-four million, two hundred fifteen thousand, four hundred".