21113231200122 has 8 divisors (see below), whose sum is σ = 42226462400256. Its totient is φ = 7037743733372.

The previous prime is 21113231200097. The next prime is 21113231200151. The reversal of 21113231200122 is 22100213231112.

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

21113231200122 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1759435933338 + ... + 1759435933349.

It is an arithmetic number, because the mean of its divisors is an integer number (5278307800032).

Almost surely, 2^{21113231200122} is an apocalyptic number.

21113231200122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21113231200122 is a wasteful number, since it uses less digits than its factorization.

21113231200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518871866692.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21113231200122 its reverse (22100213231112), we get a palindrome (43213444431234).

The spelling of 21113231200122 in words is "twenty-one trillion, one hundred thirteen billion, two hundred thirty-one million, two hundred thousand, one hundred twenty-two".