211212121212112 has 80 divisors (see below), whose sum is σ = 415736602654464. Its totient is φ = 103938206400000.

The previous prime is 211212121212083. The next prime is 211212121212179.

211212121212112 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×211212121212112² (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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687504523 + ... + 687811669.

Almost surely, 2^{211212121212112} is an apocalyptic number.

It is an amenable number.

211212121212112 is a deficient number, since it is larger than the sum of its proper divisors (204524481442352).

211212121212112 is a wasteful number, since it uses less digits than its factorization.

211212121212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309788 (or 309782 counting only the distinct ones).

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

The spelling of 211212121212112 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twelve".