21230122232232 has 320 divisors, whose sum is σ = 63020456136000. Its totient is φ = 6658595767296.

The previous prime is 21230122232219. The next prime is 21230122232303. The reversal of 21230122232232 is 23223222103212.

21230122232232 is a `hidden beast` number, since 2 + 1 + 2 + 301 + 2 + 2 + 2 + 322 + 32 = 666.

It is a super-2 number, since 2×21230122232232² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21230122232196 and 21230122232205.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4152182508 + ... + 4152187620.

It is an arithmetic number, because the mean of its divisors is an integer number (196938925425).

Almost surely, 2^{21230122232232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21230122232232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31510228068000).

21230122232232 is an abundant number, since it is smaller than the sum of its proper divisors (41790333903768).

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

21230122232232 is a wasteful number, since it uses less digits than its factorization.

21230122232232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7382 (or 7369 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21230122232232 its reverse (23223222103212), we get a palindrome (44453344335444).

The spelling of 21230122232232 in words is "twenty-one trillion, two hundred thirty billion, one hundred twenty-two million, two hundred thirty-two thousand, two hundred thirty-two".