21233211000 has 64 divisors (see below), whose sum is σ = 66247627680. Its totient is φ = 5662188800.

The previous prime is 21233210951. The next prime is 21233211011. The reversal of 21233211000 is 11233212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3535869 + ... + 3541868.

Almost surely, 2^21233211000 is an apocalyptic number.

21233211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21233211000 is an abundant number, since it is smaller than the sum of its proper divisors (45014416680).

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

21233211000 is a wasteful number, since it uses less digits than its factorization.

21233211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077761 (or 7077747 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21233211000 its reverse (11233212), we get a palindrome (21244444212).

It can be divided in two parts, 2123 and 3211000, that added together give a palindrome (3213123).

The spelling of 21233211000 in words is "twenty-one billion, two hundred thirty-three million, two hundred eleven thousand".