21012110002102 has 8 divisors (see below), whose sum is σ = 31625735533056. Its totient is φ = 10470198157752.

The previous prime is 21012110002069. The next prime is 21012110002111. The reversal of 21012110002102 is 20120001121012.

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

It is a congruent number.

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, 17928420918 + ... + 17928422089.

It is an arithmetic number, because the mean of its divisors is an integer number (3953216941632).

Almost surely, 2^{21012110002102} is an apocalyptic number.

21012110002102 is a deficient number, since it is larger than the sum of its proper divisors (10613625530954).

21012110002102 is a wasteful number, since it uses less digits than its factorization.

21012110002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35856843302.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21012110002102 its reverse (20120001121012), we get a palindrome (41132111123114).

The spelling of 21012110002102 in words is "twenty-one trillion, twelve billion, one hundred ten million, two thousand, one hundred two".