212011111100012 has 18 divisors (see below), whose sum is σ = 431594047596852. Its totient is φ = 90861904757064.

The previous prime is 212011111100003. The next prime is 212011111100023. The reversal of 212011111100012 is 210001111110212.

It is a super-2 number, since 2×212011111100012² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a self number, because there is not a number n which added to its sum of digits gives 212011111100012.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 540844670978 + ... + 540844671369.

It is an arithmetic number, because the mean of its divisors is an integer number (23977447088714).

Almost surely, 2^{212011111100012} is an apocalyptic number.

It is an amenable number.

212011111100012 is an abundant number, since it is smaller than the sum of its proper divisors (219582936496840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212011111100012 is a wasteful number, since it uses less digits than its factorization.

212011111100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081689342365 (or 1081689342356 counting only the distinct ones).

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

Adding to 212011111100012 its reverse (210001111110212), we get a palindrome (422012222210224).

The spelling of 212011111100012 in words is "two hundred twelve trillion, eleven billion, one hundred eleven million, one hundred thousand, twelve".