11212111010012 has 24 divisors (see below), whose sum is σ = 21412575875712. Its totient is φ = 5094595839600.

The previous prime is 11212111009987. The next prime is 11212111010021. The reversal of 11212111010012 is 21001011121211.

It is a super-2 number, since 2×11212111010012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45331664 + ... + 45578327.

It is an arithmetic number, because the mean of its divisors is an integer number (892190661488).

Almost surely, 2^{11212111010012} is an apocalyptic number.

It is an amenable number.

11212111010012 is a deficient number, since it is larger than the sum of its proper divisors (10200464865700).

11212111010012 is a wasteful number, since it uses less digits than its factorization.

11212111010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90912809 (or 90912807 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11212111010012 its reverse (21001011121211), we get a palindrome (32213122131223).

The spelling of 11212111010012 in words is "eleven trillion, two hundred twelve billion, one hundred eleven million, ten thousand, twelve".