213242221040 has 80 divisors (see below), whose sum is σ = 498666062496. Its totient is φ = 84802636800.

The previous prime is 213242221007. The next prime is 213242221057. The reversal of 213242221040 is 40122242312.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 213242220997 and 213242221015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17228294 + ... + 17240666.

Almost surely, 2^213242221040 is an apocalyptic number.

213242221040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213242221040 is an abundant number, since it is smaller than the sum of its proper divisors (285423841456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213242221040 is a wasteful number, since it uses less digits than its factorization.

213242221040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13618 (or 13612 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 213242221040 its reverse (40122242312), we get a palindrome (253364463352).

The spelling of 213242221040 in words is "two hundred thirteen billion, two hundred forty-two million, two hundred twenty-one thousand, forty".