2001911988224 has 120 divisors (see below), whose sum is σ = 4124513358000. Its totient is φ = 971028561920.

The previous prime is 2001911988221. The next prime is 2001911988233. The reversal of 2001911988224 is 4228891191002.

It is not an unprimeable number, because it can be changed into a prime (2001911988221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120233852 + ... + 120250500.

It is an arithmetic number, because the mean of its divisors is an integer number (34370944650).

Almost surely, 2^{2001911988224} 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 2001911988224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2062256679000).

2001911988224 is an abundant number, since it is smaller than the sum of its proper divisors (2122601369776).

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

2001911988224 is an equidigital number, since it uses as much as digits as its factorization.

2001911988224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16897 (or 16871 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 47.

The spelling of 2001911988224 in words is "two trillion, one billion, nine hundred eleven million, nine hundred eighty-eight thousand, two hundred twenty-four".