215105410112 has 28 divisors (see below), whose sum is σ = 426877892496. Its totient is φ = 107545626240.

The previous prime is 215105410109. The next prime is 215105410127. The reversal of 215105410112 is 211014501512.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947903 + ... + 1152705.

Almost surely, 2^215105410112 is an apocalyptic number.

It is an amenable number.

215105410112 is a deficient number, since it is larger than the sum of its proper divisors (211772482384).

215105410112 is a wasteful number, since it uses less digits than its factorization.

215105410112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221226 (or 221216 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 215105410112 its reverse (211014501512), we get a palindrome (426119911624).

The spelling of 215105410112 in words is "two hundred fifteen billion, one hundred five million, four hundred ten thousand, one hundred twelve".