2112002321 has 16 divisors (see below), whose sum is σ = 2482545408. Its totient is φ = 1771372800.

The previous prime is 2112002311. The next prime is 2112002351. The reversal of 2112002321 is 1232002112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2112002321 - 2⁶ = 2112002257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112002296 and 2112002305.

It is not an unprimeable number, because it can be changed into a prime (2112002311) 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, 457736 + ... + 462326.

It is an arithmetic number, because the mean of its divisors is an integer number (155159088).

Almost surely, 2^2112002321 is an apocalyptic number.

It is an amenable number.

2112002321 is a deficient number, since it is larger than the sum of its proper divisors (370543087).

2112002321 is a wasteful number, since it uses less digits than its factorization.

2112002321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7832.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2112002321 is about 45956.5264244373. The cubic root of 2112002321 is about 1283.0142019910.

Adding to 2112002321 its reverse (1232002112), we get a palindrome (3344004433).

The spelling of 2112002321 in words is "two billion, one hundred twelve million, two thousand, three hundred twenty-one".