2123221213112 has 16 divisors (see below), whose sum is σ = 3981159138840. Its totient is φ = 1061578776096.

The previous prime is 2123221213103. The next prime is 2123221213121. The reversal of 2123221213112 is 2113121223212.

It is an interprime number because it is at equal distance from previous prime (2123221213103) and next prime (2123221213121).

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, 3694118 + ... + 4230005.

Almost surely, 2^{2123221213112} is an apocalyptic number.

It is an amenable number.

2123221213112 is a deficient number, since it is larger than the sum of its proper divisors (1857937925728).

2123221213112 is a wasteful number, since it uses less digits than its factorization.

2123221213112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7957622 (or 7957618 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 2123221213112 its reverse (2113121223212), we get a palindrome (4236342436324).

The spelling of 2123221213112 in words is "two trillion, one hundred twenty-three billion, two hundred twenty-one million, two hundred thirteen thousand, one hundred twelve".