21133333002 has 32 divisors (see below), whose sum is σ = 42978749184. Its totient is φ = 6925867200.

The previous prime is 21133332991. The next prime is 21133333003. The reversal of 21133333002 is 20033333112.

It is a self number, because there is not a number n which added to its sum of digits gives 21133333002.

It is not an unprimeable number, because it can be changed into a prime (21133333003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 894927 + ... + 918237.

It is an arithmetic number, because the mean of its divisors is an integer number (1343085912).

Almost surely, 2^21133333002 is an apocalyptic number.

21133333002 is an abundant number, since it is smaller than the sum of its proper divisors (21845416182).

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

21133333002 is a wasteful number, since it uses less digits than its factorization.

21133333002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25854.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 21133333002 its reverse (20033333112), we get a palindrome (41166666114).

The spelling of 21133333002 in words is "twenty-one billion, one hundred thirty-three million, three hundred thirty-three thousand, two".