21011210002 has 8 divisors (see below), whose sum is σ = 33175594800. Its totient is φ = 9952678404.

The previous prime is 21011209997. The next prime is 21011210023. The reversal of 21011210002 is 20001211012.

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, 276463252 + ... + 276463327.

It is an arithmetic number, because the mean of its divisors is an integer number (4146949350).

Almost surely, 2^21011210002 is an apocalyptic number.

21011210002 is a deficient number, since it is larger than the sum of its proper divisors (12164384798).

21011210002 is a wasteful number, since it uses less digits than its factorization.

21011210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552926600.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21011210002 its reverse (20001211012), we get a palindrome (41012421014).

The spelling of 21011210002 in words is "twenty-one billion, eleven million, two hundred ten thousand, two".