212111012 has 24 divisors (see below), whose sum is σ = 377620320. Its totient is φ = 104227200.

The previous prime is 212110981. The next prime is 212111027. The reversal of 212111012 is 210111212.

It is a junction number, because it is equal to n+sod(n) for n = 212110984 and 212111002.

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, 176012 + ... + 177212.

It is an arithmetic number, because the mean of its divisors is an integer number (15734180).

Almost surely, 2^212111012 is an apocalyptic number.

It is an amenable number.

212111012 is a deficient number, since it is larger than the sum of its proper divisors (165509308).

212111012 is a wasteful number, since it uses less digits than its factorization.

212111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 212111012 is about 14564.0314473706. The cubic root of 212111012 is about 596.3772554119.

Adding to 212111012 its reverse (210111212), we get a palindrome (422222224).

The spelling of 212111012 in words is "two hundred twelve million, one hundred eleven thousand, twelve".