21033223211002 has 4 divisors (see below), whose sum is σ = 31549834816506. Its totient is φ = 10516611605500.

The previous prime is 21033223210973. The next prime is 21033223211047. The reversal of 21033223211002 is 20011232233012.

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., 19773398799441 + 1259824411561 = 4446729^2 + 1122419^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5258305802749 + ... + 5258305802752.

Almost surely, 2^{21033223211002} is an apocalyptic number.

21033223211002 is a deficient number, since it is larger than the sum of its proper divisors (10516611605504).

21033223211002 is a wasteful number, since it uses less digits than its factorization.

21033223211002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516611605503.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21033223211002 its reverse (20011232233012), we get a palindrome (41044455444014).

The spelling of 21033223211002 in words is "twenty-one trillion, thirty-three billion, two hundred twenty-three million, two hundred eleven thousand, two".