212101101012 has 24 divisors (see below), whose sum is σ = 495381690496. Its totient is φ = 70631921088.

The previous prime is 212101100999. The next prime is 212101101053. The reversal of 212101101012 is 210101101212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8542828 + ... + 8567619.

Almost surely, 2^212101101012 is an apocalyptic number.

It is an amenable number.

212101101012 is an abundant number, since it is smaller than the sum of its proper divisors (283280589484).

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

212101101012 is a wasteful number, since it uses less digits than its factorization.

212101101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17111487 (or 17111485 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212101101012 its reverse (210101101212), we get a palindrome (422202202224).

The spelling of 212101101012 in words is "two hundred twelve billion, one hundred one million, one hundred one thousand, twelve".