2111212111012 has 12 divisors (see below), whose sum is σ = 3694898515840. Its totient is φ = 1055526820776.

The previous prime is 2111212110947. The next prime is 2111212111033. The reversal of 2111212111012 is 2101112121112.

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, 19748712 + ... + 19855327.

Almost surely, 2^{2111212111012} is an apocalyptic number.

It is an amenable number.

2111212111012 is a deficient number, since it is larger than the sum of its proper divisors (1583686404828).

2111212111012 is a wasteful number, since it uses less digits than its factorization.

2111212111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39617370 (or 39617368 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 2111212111012 its reverse (2101112121112), we get a palindrome (4212324232124).

The spelling of 2111212111012 in words is "two trillion, one hundred eleven billion, two hundred twelve million, one hundred eleven thousand, twelve".