2121011323232 has 24 divisors (see below), whose sum is σ = 4216282224336. Its totient is φ = 1050209488512.

The previous prime is 2121011323229. The next prime is 2121011323243. The reversal of 2121011323232 is 2323231101212.

It is a junction number, because it is equal to n+sod(n) for n = 2121011323198 and 2121011323207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321752063 + ... + 321758654.

It is an arithmetic number, because the mean of its divisors is an integer number (175678426014).

Almost surely, 2^{2121011323232} is an apocalyptic number.

It is an amenable number.

2121011323232 is a deficient number, since it is larger than the sum of its proper divisors (2095270901104).

2121011323232 is a wasteful number, since it uses less digits than its factorization.

2121011323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643510830 (or 643510822 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2121011323232 its reverse (2323231101212), we get a palindrome (4444242424444).

The spelling of 2121011323232 in words is "two trillion, one hundred twenty-one billion, eleven million, three hundred twenty-three thousand, two hundred thirty-two".