2121440442232 has 16 divisors (see below), whose sum is σ = 3978325661760. Its totient is φ = 1060553599104.

The previous prime is 2121440442197. The next prime is 2121440442257. The reversal of 2121440442232 is 2322440441212.

It is a super-3 number, since 3×2121440442232³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121440442194 and 2121440442203.

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, 20773633 + ... + 20875504.

It is an arithmetic number, because the mean of its divisors is an integer number (248645353860).

Almost surely, 2^{2121440442232} is an apocalyptic number.

It is an amenable number.

2121440442232 is a deficient number, since it is larger than the sum of its proper divisors (1856885219528).

2121440442232 is a wasteful number, since it uses less digits than its factorization.

2121440442232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41655510 (or 41655506 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 2121440442232 its reverse (2322440441212), we get a palindrome (4443880883444).

The spelling of 2121440442232 in words is "two trillion, one hundred twenty-one billion, four hundred forty million, four hundred forty-two thousand, two hundred thirty-two".