21200010101102 has 32 divisors (see below), whose sum is σ = 36718296027840. Its totient is φ = 8991867064320.

The previous prime is 21200010101047. The next prime is 21200010101107. The reversal of 21200010101102 is 20110101000212.

It is a super-3 number, since 3×21200010101102³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200010101107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81405674 + ... + 81665682.

It is an arithmetic number, because the mean of its divisors is an integer number (1147446750870).

Almost surely, 2^{21200010101102} is an apocalyptic number.

21200010101102 is a deficient number, since it is larger than the sum of its proper divisors (15518285926738).

21200010101102 is a wasteful number, since it uses less digits than its factorization.

21200010101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320156.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21200010101102 its reverse (20110101000212), we get a palindrome (41310111101314).

The spelling of 21200010101102 in words is "twenty-one trillion, two hundred billion, ten million, one hundred one thousand, one hundred two".