21132201242 has 16 divisors (see below), whose sum is σ = 33372336960. Its totient is φ = 10008279072.

The previous prime is 21132201217. The next prime is 21132201281. The reversal of 21132201242 is 24210223112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193598 + ... + 282390.

It is an arithmetic number, because the mean of its divisors is an integer number (2085771060).

Almost surely, 2^21132201242 is an apocalyptic number.

21132201242 is a deficient number, since it is larger than the sum of its proper divisors (12240135718).

21132201242 is a wasteful number, since it uses less digits than its factorization.

21132201242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95077.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21132201242 its reverse (24210223112), we get a palindrome (45342424354).

The spelling of 21132201242 in words is "twenty-one billion, one hundred thirty-two million, two hundred one thousand, two hundred forty-two".