2201321322312 has 128 divisors (see below), whose sum is σ = 6417477469440. Its totient is φ = 616230420480.

The previous prime is 2201321322271. The next prime is 2201321322377. The reversal of 2201321322312 is 2132231231022.

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

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 31 ways as a sum of consecutive naturals, for example, 2215828 + ... + 3051644.

It is an arithmetic number, because the mean of its divisors is an integer number (50136542730).

Almost surely, 2^{2201321322312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2201321322312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3208738734720).

2201321322312 is an abundant number, since it is smaller than the sum of its proper divisors (4216156147128).

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

2201321322312 is a wasteful number, since it uses less digits than its factorization.

2201321322312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836151 (or 836147 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 2201321322312 its reverse (2132231231022), we get a palindrome (4333552553334).

The spelling of 2201321322312 in words is "two trillion, two hundred one billion, three hundred twenty-one million, three hundred twenty-two thousand, three hundred twelve".