2001024221144 has 32 divisors (see below), whose sum is σ = 4170869351040. Its totient is φ = 893757715200.

The previous prime is 2001024221123. The next prime is 2001024221153. The reversal of 2001024221144 is 4411224201002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310329317 + ... + 310335764.

It is an arithmetic number, because the mean of its divisors is an integer number (130339667220).

Almost surely, 2^{2001024221144} is an apocalyptic number.

It is an amenable number.

2001024221144 is an abundant number, since it is smaller than the sum of its proper divisors (2169845129896).

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

2001024221144 is a wasteful number, since it uses less digits than its factorization.

2001024221144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620665131 (or 620665127 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 2001024221144 its reverse (4411224201002), we get a palindrome (6412248422146).

The spelling of 2001024221144 in words is "two trillion, one billion, twenty-four million, two hundred twenty-one thousand, one hundred forty-four".