212212473 has 32 divisors (see below), whose sum is σ = 320550912. Its totient is φ = 123758400.

The previous prime is 212212457. The next prime is 212212489. The reversal of 212212473 is 374212212.

It is an interprime number because it is at equal distance from previous prime (212212457) and next prime (212212489).

It is not a de Polignac number, because 212212473 - 2⁴ = 212212457 is a prime.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (212212423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93490 + ... + 95732.

It is an arithmetic number, because the mean of its divisors is an integer number (10017216).

Almost surely, 2^212212473 is an apocalyptic number.

It is an amenable number.

212212473 is a deficient number, since it is larger than the sum of its proper divisors (108338439).

212212473 is a wasteful number, since it uses less digits than its factorization.

212212473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365.

The product of its digits is 1344, while the sum is 24.

The square root of 212212473 is about 14567.5143040946. The cubic root of 212212473 is about 596.4723304495.

Adding to 212212473 its reverse (374212212), we get a palindrome (586424685).

The spelling of 212212473 in words is "two hundred twelve million, two hundred twelve thousand, four hundred seventy-three".