21031101230122 has 8 divisors (see below), whose sum is σ = 31990970885472. Its totient is φ = 10367444268300.

The previous prime is 21031101230071. The next prime is 21031101230131. The reversal of 21031101230122 is 22103210113012.

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 21031101230122.

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, 74053173204 + ... + 74053173487.

It is an arithmetic number, because the mean of its divisors is an integer number (3998871360684).

Almost surely, 2^{21031101230122} is an apocalyptic number.

21031101230122 is a deficient number, since it is larger than the sum of its proper divisors (10959869655350).

21031101230122 is a wasteful number, since it uses less digits than its factorization.

21031101230122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148106346764.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21031101230122 its reverse (22103210113012), we get a palindrome (43134311343134).

The spelling of 21031101230122 in words is "twenty-one trillion, thirty-one billion, one hundred one million, two hundred thirty thousand, one hundred twenty-two".