21132140195 has 16 divisors (see below), whose sum is σ = 26748099840. Its totient is φ = 15983015904.

The previous prime is 21132140179. The next prime is 21132140213. The reversal of 21132140195 is 59104123112.

It is a cyclic number.

It is not a de Polignac number, because 21132140195 - 2⁴ = 21132140179 is a prime.

It is a super-2 number, since 2×21132140195² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182117 + ... + 274646.

It is an arithmetic number, because the mean of its divisors is an integer number (1671756240).

Almost surely, 2^21132140195 is an apocalyptic number.

21132140195 is a deficient number, since it is larger than the sum of its proper divisors (5615959645).

21132140195 is a wasteful number, since it uses less digits than its factorization.

21132140195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457274.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 21132140195 in words is "twenty-one billion, one hundred thirty-two million, one hundred forty thousand, one hundred ninety-five".