21122313002 has 8 divisors (see below), whose sum is σ = 36209679456. Its totient is φ = 9052419852.

The previous prime is 21122312987. The next prime is 21122313013. The reversal of 21122313002 is 20031322112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754368308 + ... + 754368335.

It is an arithmetic number, because the mean of its divisors is an integer number (4526209932).

Almost surely, 2^21122313002 is an apocalyptic number.

21122313002 is a deficient number, since it is larger than the sum of its proper divisors (15087366454).

21122313002 is a wasteful number, since it uses less digits than its factorization.

21122313002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508736652.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21122313002 its reverse (20031322112), we get a palindrome (41153635114).

The spelling of 21122313002 in words is "twenty-one billion, one hundred twenty-two million, three hundred thirteen thousand, two".