2112021008 has 10 divisors (see below), whose sum is σ = 4092040734. Its totient is φ = 1056010496.

The previous prime is 2112021001. The next prime is 2112021031. The reversal of 2112021008 is 8001202112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1642518784 + 469502224 = 40528^2 + 21668^2 .

It is not an unprimeable number, because it can be changed into a prime (2112021001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66000641 + ... + 66000672.

Almost surely, 2^2112021008 is an apocalyptic number.

It is an amenable number.

2112021008 is a deficient number, since it is larger than the sum of its proper divisors (1980019726).

2112021008 is a wasteful number, since it uses less digits than its factorization.

2112021008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132001321 (or 132001315 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 2112021008 is about 45956.7297356981. The cubic root of 2112021008 is about 1283.0179860171.

The spelling of 2112021008 in words is "two billion, one hundred twelve million, twenty-one thousand, eight".