2147222032644 has 96 divisors (see below), whose sum is σ = 5521765544064. Its totient is φ = 645236766720.

The previous prime is 2147222032639. The next prime is 2147222032679. The reversal of 2147222032644 is 4462302227412.

It is a super-2 number, since 2×2147222032644² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 71176924 + ... + 71207084.

It is an arithmetic number, because the mean of its divisors is an integer number (57518391084).

Almost surely, 2^{2147222032644} 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 2147222032644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2760882772032).

2147222032644 is an abundant number, since it is smaller than the sum of its proper divisors (3374543511420).

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

2147222032644 is a wasteful number, since it uses less digits than its factorization.

2147222032644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40837 (or 40835 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 39.

The spelling of 2147222032644 in words is "two trillion, one hundred forty-seven billion, two hundred twenty-two million, thirty-two thousand, six hundred forty-four".