2111011221212 has 48 divisors (see below), whose sum is σ = 3938360025600. Its totient is φ = 987186994560.

The previous prime is 2111011221149. The next prime is 2111011221259. The reversal of 2111011221212 is 2121221101112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89585912 + ... + 89609472.

It is an arithmetic number, because the mean of its divisors is an integer number (82049167200).

Almost surely, 2^{2111011221212} is an apocalyptic number.

It is an amenable number.

2111011221212 is a deficient number, since it is larger than the sum of its proper divisors (1827348804388).

2111011221212 is a wasteful number, since it uses less digits than its factorization.

2111011221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38586 (or 38584 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2111011221212 its reverse (2121221101112), we get a palindrome (4232232322324).

The spelling of 2111011221212 in words is "two trillion, one hundred eleven billion, eleven million, two hundred twenty-one thousand, two hundred twelve".