412212215 has 4 divisors (see below), whose sum is σ = 494654664. Its totient is φ = 329769768.

The previous prime is 412212211. The next prime is 412212221. The reversal of 412212215 is 512212214.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 412212215 - 2² = 412212211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412212211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41221217 + ... + 41221226.

It is an arithmetic number, because the mean of its divisors is an integer number (123663666).

Almost surely, 2^412212215 is an apocalyptic number.

412212215 is a deficient number, since it is larger than the sum of its proper divisors (82442449).

412212215 is an equidigital number, since it uses as much as digits as its factorization.

412212215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82442448.

The product of its digits is 320, while the sum is 20.

The square root of 412212215 is about 20303.0099985199. The cubic root of 412212215 is about 744.2296227058.

Adding to 412212215 its reverse (512212214), we get a palindrome (924424429).

Subtracting 412212215 from its reverse (512212214), we obtain a palindrome (99999999).

The spelling of 412212215 in words is "four hundred twelve million, two hundred twelve thousand, two hundred fifteen".