21201200210212 has 24 divisors (see below), whose sum is σ = 40478713490880. Its totient is φ = 9636029446560.

The previous prime is 21201200210189. The next prime is 21201200210221.

It is a happy number.

21201200210212 is nontrivially palindromic in base 10.

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, 21505912 + ... + 22470127.

It is an arithmetic number, because the mean of its divisors is an integer number (1686613062120).

Almost surely, 2^{21201200210212} is an apocalyptic number.

21201200210212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21201200210212 is a deficient number, since it is larger than the sum of its proper divisors (19277513280668).

21201200210212 is a wasteful number, since it uses less digits than its factorization.

21201200210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43987011 (or 43987009 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

It can be divided in two parts, 21201200 and 210212, that added together give a palindrome (21411412).

The spelling of 21201200210212 in words is "twenty-one trillion, two hundred one billion, two hundred million, two hundred ten thousand, two hundred twelve".