212101110221112 has 192 divisors, whose sum is σ = 686179158712320. Its totient is φ = 60123148864128.

The previous prime is 212101110221107. The next prime is 212101110221213. The reversal of 212101110221112 is 211122011101212.

It is a happy number.

212101110221112 is a `hidden beast` number, since 212 + 10 + 1 + 110 + 221 + 112 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59635963 + ... + 63092394.

It is an arithmetic number, because the mean of its divisors is an integer number (3573849784960).

Almost surely, 2^{212101110221112} is an apocalyptic number.

It is an amenable number.

212101110221112 is an abundant number, since it is smaller than the sum of its proper divisors (474078048491208).

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

212101110221112 is a wasteful number, since it uses less digits than its factorization.

212101110221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122728512 (or 122728496 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 212101110221112 its reverse (211122011101212), we get a palindrome (423223121322324).

The spelling of 212101110221112 in words is "two hundred twelve trillion, one hundred one billion, one hundred ten million, two hundred twenty-one thousand, one hundred twelve".