21312041122 has 8 divisors (see below), whose sum is σ = 32445197136. Its totient is φ = 10496975412.

The previous prime is 21312041119. The next prime is 21312041129. The reversal of 21312041122 is 22114021312.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21312041122.

It is not an unprimeable number, because it can be changed into a prime (21312041129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79522408 + ... + 79522675.

It is an arithmetic number, because the mean of its divisors is an integer number (4055649642).

Almost surely, 2^21312041122 is an apocalyptic number.

21312041122 is a deficient number, since it is larger than the sum of its proper divisors (11133156014).

21312041122 is a wasteful number, since it uses less digits than its factorization.

21312041122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159045152.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21312041122 its reverse (22114021312), we get a palindrome (43426062434).

The spelling of 21312041122 in words is "twenty-one billion, three hundred twelve million, forty-one thousand, one hundred twenty-two".