22146462312 has 128 divisors (see below), whose sum is σ = 60782400000. Its totient is φ = 6682602240.

The previous prime is 22146462257. The next prime is 22146462319. The reversal of 22146462312 is 21326464122.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22146462319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9184387 + ... + 9186797.

It is an arithmetic number, because the mean of its divisors is an integer number (474862500).

Almost surely, 2^22146462312 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 22146462312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30391200000).

22146462312 is an abundant number, since it is smaller than the sum of its proper divisors (38635937688).

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

22146462312 is a wasteful number, since it uses less digits than its factorization.

22146462312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2991 (or 2987 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The spelling of 22146462312 in words is "twenty-two billion, one hundred forty-six million, four hundred sixty-two thousand, three hundred twelve".