212173371 has 16 divisors (see below), whose sum is σ = 315829120. Its totient is φ = 140774760.

The previous prime is 212173349. The next prime is 212173373. The reversal of 212173371 is 173371212.

It is not a de Polignac number, because 212173371 - 2¹⁰ = 212172347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212173373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12925 + ... + 24318.

It is an arithmetic number, because the mean of its divisors is an integer number (19739320).

Almost surely, 2^212173371 is an apocalyptic number.

212173371 is a deficient number, since it is larger than the sum of its proper divisors (103655749).

212173371 is a wasteful number, since it uses less digits than its factorization.

212173371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37463 (or 37457 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 212173371 is about 14566.1721464495. The cubic root of 212173371 is about 596.4356931219.

The spelling of 212173371 in words is "two hundred twelve million, one hundred seventy-three thousand, three hundred seventy-one".