220155312300 has 1152 divisors, whose sum is σ = 884583383040. Its totient is φ = 40874803200.

The previous prime is 220155312271. The next prime is 220155312409. The reversal of 220155312300 is 3213551022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1140701004 + ... + 1140701196.

It is an arithmetic number, because the mean of its divisors is an integer number (767867520).

Almost surely, 2^220155312300 is an apocalyptic number.

220155312300 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 220155312300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442291691520).

220155312300 is an abundant number, since it is smaller than the sum of its proper divisors (664428070740).

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

220155312300 is a wasteful number, since it uses less digits than its factorization.

220155312300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 220155312300 its reverse (3213551022), we get a palindrome (223368863322).

The spelling of 220155312300 in words is "two hundred twenty billion, one hundred fifty-five million, three hundred twelve thousand, three hundred".