211212111212112 has 80 divisors (see below), whose sum is σ = 546058089420480. Its totient is φ = 70348979936256.

The previous prime is 211212111212057. The next prime is 211212111212117.

211212111212112 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×211212111212112² (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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212111212117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487658083 + ... + 488091005.

It is an arithmetic number, because the mean of its divisors is an integer number (6825726117756).

Almost surely, 2^{211212111212112} is an apocalyptic number.

It is an amenable number.

211212111212112 is an abundant number, since it is smaller than the sum of its proper divisors (334845978208368).

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

211212111212112 is a wasteful number, since it uses less digits than its factorization.

211212111212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440860 (or 440854 counting only the distinct ones).

The product of its digits is 64, while the sum is 21.

The spelling of 211212111212112 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred eleven million, two hundred twelve thousand, one hundred twelve".