5312222120000 has 140 divisors (see below), whose sum is σ = 13175029840896. Its totient is φ = 2124494400000.

The previous prime is 5312222119979. The next prime is 5312222120027. The reversal of 5312222120000 is 212222135.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 318031649 + ... + 318048351.

Almost surely, 2^{5312222120000} is an apocalyptic number.

5312222120000 is a gapful number since it is divisible by the number (50) 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 5312222120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6587514920448).

5312222120000 is an abundant number, since it is smaller than the sum of its proper divisors (7862807720896).

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

5312222120000 is an equidigital number, since it uses as much as digits as its factorization.

5312222120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24686 (or 24661 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 5312222120000 its reverse (212222135), we get a palindrome (5312434342135).

The spelling of 5312222120000 in words is "five trillion, three hundred twelve billion, two hundred twenty-two million, one hundred twenty thousand".