21000010242332 has 12 divisors (see below), whose sum is σ = 40090928644536. Its totient is φ = 9545459201040.

The previous prime is 21000010242313. The next prime is 21000010242427. The reversal of 21000010242332 is 23324201000012.

It is a congruent 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, 238636479983 + ... + 238636480070.

It is an arithmetic number, because the mean of its divisors is an integer number (3340910720378).

Almost surely, 2^{21000010242332} is an apocalyptic number.

21000010242332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21000010242332 is a deficient number, since it is larger than the sum of its proper divisors (19090918402204).

21000010242332 is a wasteful number, since it uses less digits than its factorization.

21000010242332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477272960068 (or 477272960066 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21000010242332 its reverse (23324201000012), we get a palindrome (44324211242344).

The spelling of 21000010242332 in words is "twenty-one trillion, ten million, two hundred forty-two thousand, three hundred thirty-two".