212021112102 has 8 divisors (see below), whose sum is σ = 424042224216. Its totient is φ = 70673704032.

The previous prime is 212021112071. The next prime is 212021112109. The reversal of 212021112102 is 201211120212.

It is a sphenic number, since it is the product of 3 distinct primes.

212021112102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021112109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17668426003 + ... + 17668426014.

It is an arithmetic number, because the mean of its divisors is an integer number (53005278027).

Almost surely, 2^212021112102 is an apocalyptic number.

212021112102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

212021112102 is a wasteful number, since it uses less digits than its factorization.

212021112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35336852022.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212021112102 its reverse (201211120212), we get a palindrome (413232232314).

The spelling of 212021112102 in words is "two hundred twelve billion, twenty-one million, one hundred twelve thousand, one hundred two".