212232455 has 8 divisors (see below), whose sum is σ = 256087104. Its totient is φ = 168847200.

The previous prime is 212232439. The next prime is 212232491. The reversal of 212232455 is 554232212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212232455 - 2⁴ = 212232439 is a prime.

It is a super-2 number, since 2×212232455² = 90085229910654050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 116351 + ... + 118160.

It is an arithmetic number, because the mean of its divisors is an integer number (32010888).

Almost surely, 2^212232455 is an apocalyptic number.

212232455 is a deficient number, since it is larger than the sum of its proper divisors (43854649).

212232455 is a wasteful number, since it uses less digits than its factorization.

212232455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234697.

The product of its digits is 4800, while the sum is 26.

The square root of 212232455 is about 14568.2001290482. The cubic root of 212232455 is about 596.4910512091.

Adding to 212232455 its reverse (554232212), we get a palindrome (766464667).

The spelling of 212232455 in words is "two hundred twelve million, two hundred thirty-two thousand, four hundred fifty-five".