212422245 has 32 divisors (see below), whose sum is σ = 401829120. Its totient is φ = 93757440.

The previous prime is 212422241. The next prime is 212422247. The reversal of 212422245 is 542224212.

212422245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212422245 - 2² = 212422241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212422241) 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, 31836 + ... + 37925.

It is an arithmetic number, because the mean of its divisors is an integer number (12557160).

Almost surely, 2^212422245 is an apocalyptic number.

It is an amenable number.

212422245 is a deficient number, since it is larger than the sum of its proper divisors (189406875).

212422245 is a wasteful number, since it uses less digits than its factorization.

212422245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69805.

The product of its digits is 2560, while the sum is 24.

The square root of 212422245 is about 14574.7125186056. The cubic root of 212422245 is about 596.6688033311.

Adding to 212422245 its reverse (542224212), we get a palindrome (754646457).

The spelling of 212422245 in words is "two hundred twelve million, four hundred twenty-two thousand, two hundred forty-five".