21210102110002 has 16 divisors (see below), whose sum is σ = 34275129743232. Its totient is φ = 9785661581520.

The previous prime is 21210102109993. The next prime is 21210102110017. The reversal of 21210102110002 is 20001120101212.

It is a super-2 number, since 2×21210102110002² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150608074 + ... + 150748837.

It is an arithmetic number, because the mean of its divisors is an integer number (2142195608952).

Almost surely, 2^{21210102110002} is an apocalyptic number.

21210102110002 is a deficient number, since it is larger than the sum of its proper divisors (13065027633230).

21210102110002 is a wasteful number, since it uses less digits than its factorization.

21210102110002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301359633.

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

Adding to 21210102110002 its reverse (20001120101212), we get a palindrome (41211222211214).

The spelling of 21210102110002 in words is "twenty-one trillion, two hundred ten billion, one hundred two million, one hundred ten thousand, two".