21033332013002 has 4 divisors (see below), whose sum is σ = 31549998019506. Its totient is φ = 10516666006500.

The previous prime is 21033332012999. The next prime is 21033332013007. The reversal of 21033332013002 is 20031023333012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13878076158241 + 7155255854761 = 3725329^2 + 2674931^2 .

It is not an unprimeable number, because it can be changed into a prime (21033332013007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5258333003249 + ... + 5258333003252.

Almost surely, 2^{21033332013002} is an apocalyptic number.

21033332013002 is a deficient number, since it is larger than the sum of its proper divisors (10516666006504).

21033332013002 is a wasteful number, since it uses less digits than its factorization.

21033332013002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10516666006503.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21033332013002 its reverse (20031023333012), we get a palindrome (41064355346014).

The spelling of 21033332013002 in words is "twenty-one trillion, thirty-three billion, three hundred thirty-two million, thirteen thousand, two".