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BaseRepresentation
bin110000001110100111111000…
…000001101101100010101100
31000211000121212201200111012102
4300032213320001231202230
5210300212034001024322
62031042300454354232
762451344213231351
oct6016477001554254
91024017781614172
10212111121111212
1161648904161754
121b95868135b978
139147cba50b47b
143a5433965c628
15197c76c70d792
hexc0e9f806d8ac

212111121111212 has 96 divisors (see below), whose sum is σ = 385217845830720. Its totient is φ = 102155956531200.

The previous prime is 212111121111203. The next prime is 212111121111221.

212111121111212 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (212111121111203) and next prime (212111121111221).

It is a super-2 number, since 2×2121111211112122 (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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 634176239 + ... + 634510617.

It is an arithmetic number, because the mean of its divisors is an integer number (4012685894070).

Almost surely, 2212111121111212 is an apocalyptic number.

It is an amenable number.

212111121111212 is a deficient number, since it is larger than the sum of its proper divisors (173106724719508).

212111121111212 is a wasteful number, since it uses less digits than its factorization.

212111121111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334851 (or 334849 counting only the distinct ones).

The product of its digits is 32, while the sum is 20.

The spelling of 212111121111212 in words is "two hundred twelve trillion, one hundred eleven billion, one hundred twenty-one million, one hundred eleven thousand, two hundred twelve".