212111222111212 has 48 divisors (see below), whose sum is σ = 376403838124608. Its totient is φ = 104576226451200.

The previous prime is 212111222111209. The next prime is 212111222111213.

212111222111212 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×212111222111212² (a number of 29 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (212111222111213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233097898 + ... + 234006094.

It is an arithmetic number, because the mean of its divisors is an integer number (7841746627596).

Almost surely, 2^{212111222111212} is an apocalyptic number.

It is an amenable number.

212111222111212 is a deficient number, since it is larger than the sum of its proper divisors (164292616013396).

212111222111212 is a wasteful number, since it uses less digits than its factorization.

212111222111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910666 (or 910664 counting only the distinct ones).

The product of its digits is 128, while the sum is 22.

The spelling of 212111222111212 in words is "two hundred twelve trillion, one hundred eleven billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twelve".