215042225043 has 16 divisors (see below), whose sum is σ = 291176301312. Its totient is φ = 141140580000.

The previous prime is 215042225029. The next prime is 215042225071. The reversal of 215042225043 is 340522240512.

It is not a de Polignac number, because 215042225043 - 2⁹ = 215042224531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215042225043.

It is not an unprimeable number, because it can be changed into a prime (215042225743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570793 + ... + 869418.

It is an arithmetic number, because the mean of its divisors is an integer number (18198518832).

Almost surely, 2^215042225043 is an apocalyptic number.

215042225043 is a deficient number, since it is larger than the sum of its proper divisors (76134076269).

215042225043 is a wasteful number, since it uses less digits than its factorization.

215042225043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440986.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 215042225043 its reverse (340522240512), we get a palindrome (555564465555).

The spelling of 215042225043 in words is "two hundred fifteen billion, forty-two million, two hundred twenty-five thousand, forty-three".