21011202002232 has 192 divisors, whose sum is σ = 61401999728160. Its totient is φ = 6452406604800.

The previous prime is 21011202002227. The next prime is 21011202002239. The reversal of 21011202002232 is 23220020211012.

21011202002232 is a `hidden beast` number, since 210 + 1 + 1 + 20 + 200 + 2 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011202002239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1514095678 + ... + 1514109554.

Almost surely, 2^{21011202002232} 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 21011202002232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30700999864080).

21011202002232 is an abundant number, since it is smaller than the sum of its proper divisors (40390797725928).

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

21011202002232 is a wasteful number, since it uses less digits than its factorization.

21011202002232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16934 (or 16927 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21011202002232 its reverse (23220020211012), we get a palindrome (44231222213244).

The spelling of 21011202002232 in words is "twenty-one trillion, eleven billion, two hundred two million, two thousand, two hundred thirty-two".