215146012233 has 32 divisors (see below), whose sum is σ = 303989317632. Its totient is φ = 135127324800.

The previous prime is 215146012229. The next prime is 215146012253. The reversal of 215146012233 is 332210641512.

It is not a de Polignac number, because 215146012233 - 2² = 215146012229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215146012233.

It is not an unprimeable number, because it can be changed into a prime (215146012223) 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, 1720260 + ... + 1841082.

It is an arithmetic number, because the mean of its divisors is an integer number (9499666176).

Almost surely, 2^215146012233 is an apocalyptic number.

It is an amenable number.

215146012233 is a deficient number, since it is larger than the sum of its proper divisors (88843305399).

215146012233 is a wasteful number, since it uses less digits than its factorization.

215146012233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121365.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 215146012233 its reverse (332210641512), we get a palindrome (547356653745).

The spelling of 215146012233 in words is "two hundred fifteen billion, one hundred forty-six million, twelve thousand, two hundred thirty-three".