21201200002110 has 128 divisors (see below), whose sum is σ = 53623462717440. Its totient is φ = 5349843072000.

The previous prime is 21201200002069. The next prime is 21201200002117. The reversal of 21201200002110 is 1120000210212.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21201200002117) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2058163960 + ... + 2058174260.

It is an arithmetic number, because the mean of its divisors is an integer number (418933302480).

Almost surely, 2^{21201200002110} is an apocalyptic number.

21201200002110 is an abundant number, since it is smaller than the sum of its proper divisors (32422262715330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21201200002110 is a wasteful number, since it uses less digits than its factorization.

21201200002110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14194.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21201200002110 its reverse (1120000210212), we get a palindrome (22321200212322).

The spelling of 21201200002110 in words is "twenty-one trillion, two hundred one billion, two hundred million, two thousand, one hundred ten".