21133333333232 has 40 divisors (see below), whose sum is σ = 43752158722800. Its totient is φ = 9853858593792.

The previous prime is 21133333333201. The next prime is 21133333333237. The reversal of 21133333333232 is 23233333333112.

It is a junction number, because it is equal to n+sod(n) for n = 21133333333192 and 21133333333201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133333333237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356374382 + ... + 356433677.

It is an arithmetic number, because the mean of its divisors is an integer number (1093803968070).

Almost surely, 2^{21133333333232} is an apocalyptic number.

It is an amenable number.

21133333333232 is an abundant number, since it is smaller than the sum of its proper divisors (22618825389568).

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

21133333333232 is a wasteful number, since it uses less digits than its factorization.

21133333333232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712808193 (or 712808187 counting only the distinct ones).

The product of its digits is 157464, while the sum is 35.

Adding to 21133333333232 its reverse (23233333333112), we get a palindrome (44366666666344).

The spelling of 21133333333232 in words is "twenty-one trillion, one hundred thirty-three billion, three hundred thirty-three million, three hundred thirty-three thousand, two hundred thirty-two".