2120212112321 has 8 divisors (see below), whose sum is σ = 2144245371840. Its totient is φ = 2096262157968.

The previous prime is 2120212112273. The next prime is 2120212112411. The reversal of 2120212112321 is 1232112120212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120212112321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120212112293 and 2120212112302.

It is not an unprimeable number, because it can be changed into a prime (2120212111321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20775101 + ... + 20876906.

It is an arithmetic number, because the mean of its divisors is an integer number (268030671480).

Almost surely, 2^{2120212112321} is an apocalyptic number.

It is an amenable number.

2120212112321 is a deficient number, since it is larger than the sum of its proper divisors (24033259519).

2120212112321 is a wasteful number, since it uses less digits than its factorization.

2120212112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41652583.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2120212112321 its reverse (1232112120212), we get a palindrome (3352324232533).

The spelling of 2120212112321 in words is "two trillion, one hundred twenty billion, two hundred twelve million, one hundred twelve thousand, three hundred twenty-one".