212111120220012 has 96 divisors (see below), whose sum is σ = 598873229438400. Its totient is φ = 64531645871616.

The previous prime is 212111120219927. The next prime is 212111120220061. The reversal of 212111120220012 is 210022021111212.

212111120220012 is a `hidden beast` number, since 212 + 111 + 120 + 220 + 0 + 1 + 2 = 666.

It is a super-2 number, since 2×212111120220012² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 848618283 + ... + 848868194.

It is an arithmetic number, because the mean of its divisors is an integer number (6238262806650).

Almost surely, 2^{212111120220012} is an apocalyptic number.

It is an amenable number.

212111120220012 is an abundant number, since it is smaller than the sum of its proper divisors (386762109218388).

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

212111120220012 is a wasteful number, since it uses less digits than its factorization.

212111120220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697486592 (or 1697486584 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212111120220012 its reverse (210022021111212), we get a palindrome (422133141331224).

The spelling of 212111120220012 in words is "two hundred twelve trillion, one hundred eleven billion, one hundred twenty million, two hundred twenty thousand, twelve".