212116922 has 16 divisors (see below), whose sum is σ = 344062080. Its totient is φ = 97695168.

The previous prime is 212116913. The next prime is 212116937. The reversal of 212116922 is 229611212.

212116922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212116891 and 212116900.

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, 64772 + ... + 67967.

It is an arithmetic number, because the mean of its divisors is an integer number (21503880).

Almost surely, 2^212116922 is an apocalyptic number.

212116922 is a deficient number, since it is larger than the sum of its proper divisors (131945158).

212116922 is a wasteful number, since it uses less digits than its factorization.

212116922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132805.

The product of its digits is 864, while the sum is 26.

The square root of 212116922 is about 14564.2343430748. The cubic root of 212116922 is about 596.3827942676.

The spelling of 212116922 in words is "two hundred twelve million, one hundred sixteen thousand, nine hundred twenty-two".