21312200002 has 8 divisors (see below), whose sum is σ = 32353460496. Its totient is φ = 10527713172.

The previous prime is 21312199939. The next prime is 21312200023. The reversal of 21312200002 is 20000221312.

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, 64193208 + ... + 64193539.

It is an arithmetic number, because the mean of its divisors is an integer number (4044182562).

Almost surely, 2^21312200002 is an apocalyptic number.

21312200002 is a deficient number, since it is larger than the sum of its proper divisors (11041260494).

21312200002 is a wasteful number, since it uses less digits than its factorization.

21312200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128386832.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21312200002 its reverse (20000221312), we get a palindrome (41312421314).

It can be divided in two parts, 21312 and 200002, that multiplied together give a palindrome (4262442624).

The spelling of 21312200002 in words is "twenty-one billion, three hundred twelve million, two hundred thousand, two".