2123132003221 has 16 divisors (see below), whose sum is σ = 2211394566528. Its totient is φ = 2036499192000.

The previous prime is 2123132003191. The next prime is 2123132003233. The reversal of 2123132003221 is 1223002313212.

It is a cyclic number.

It is not a de Polignac number, because 2123132003221 - 2⁵ = 2123132003189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2123132003192 and 2123132003201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123132003621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49295146 + ... + 49338196.

It is an arithmetic number, because the mean of its divisors is an integer number (138212160408).

Almost surely, 2^{2123132003221} is an apocalyptic number.

It is an amenable number.

2123132003221 is a deficient number, since it is larger than the sum of its proper divisors (88262563307).

2123132003221 is a wasteful number, since it uses less digits than its factorization.

2123132003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61932.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2123132003221 its reverse (1223002313212), we get a palindrome (3346134316433).

The spelling of 2123132003221 in words is "two trillion, one hundred twenty-three billion, one hundred thirty-two million, three thousand, two hundred twenty-one".