2120111002 has 4 divisors (see below), whose sum is σ = 3180166506. Its totient is φ = 1060055500.

The previous prime is 2120110973. The next prime is 2120111011. The reversal of 2120111002 is 2001110212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1772325801 + 347785201 = 42099^2 + 18649^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2120111002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530027749 + ... + 530027752.

Almost surely, 2^2120111002 is an apocalyptic number.

2120111002 is a deficient number, since it is larger than the sum of its proper divisors (1060055504).

2120111002 is a wasteful number, since it uses less digits than its factorization.

2120111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060055503.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2120111002 is about 46044.6631217995. The cubic root of 2120111002 is about 1284.6540781833.

Adding to 2120111002 its reverse (2001110212), we get a palindrome (4121221214).

The spelling of 2120111002 in words is "two billion, one hundred twenty million, one hundred eleven thousand, two".