42211131 has 8 divisors (see below), whose sum is σ = 56384784. Its totient is φ = 28089120.

The previous prime is 42211129. The next prime is 42211157. The reversal of 42211131 is 13111224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42211131 - 2¹ = 42211129 is a prime.

It is a super-2 number, since 2×42211131² = 3563559160598322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42211131.

It is not an unprimeable number, because it can be changed into a prime (42211111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10960 + ... + 14301.

It is an arithmetic number, because the mean of its divisors is an integer number (7048098).

Almost surely, 2^42211131 is an apocalyptic number.

42211131 is a deficient number, since it is larger than the sum of its proper divisors (14173653).

42211131 is a wasteful number, since it uses less digits than its factorization.

42211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25821.

The product of its digits is 48, while the sum is 15.

The square root of 42211131 is about 6497.0093889420. The cubic root of 42211131 is about 348.1841491357.

Adding to 42211131 its reverse (13111224), we get a palindrome (55322355).

The spelling of 42211131 in words is "forty-two million, two hundred eleven thousand, one hundred thirty-one".