2123221002144 has 96 divisors (see below), whose sum is σ = 6221531441664. Its totient is φ = 628437492480.

The previous prime is 2123221002109. The next prime is 2123221002151. The reversal of 2123221002144 is 4412001223212.

It is a tau number, because it is divible by the number of its divisors (96).

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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23333964 + ... + 23424779.

It is an arithmetic number, because the mean of its divisors is an integer number (64807619184).

Almost surely, 2^{2123221002144} is an apocalyptic number.

2123221002144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2123221002144 is an abundant number, since it is smaller than the sum of its proper divisors (4098310439520).

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

2123221002144 is a wasteful number, since it uses less digits than its factorization.

2123221002144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46758810 (or 46758802 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 2123221002144 its reverse (4412001223212), we get a palindrome (6535222225356).

The spelling of 2123221002144 in words is "two trillion, one hundred twenty-three billion, two hundred twenty-one million, two thousand, one hundred forty-four".