21210022010012 has 48 divisors (see below), whose sum is σ = 40582601579520. Its totient is φ = 9619320182400.

The previous prime is 21210022009987. The next prime is 21210022010039. The reversal of 21210022010012 is 21001022001212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144107363 + ... + 144254469.

It is an arithmetic number, because the mean of its divisors is an integer number (845470866240).

Almost surely, 2^{21210022010012} is an apocalyptic number.

21210022010012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21210022010012 is a deficient number, since it is larger than the sum of its proper divisors (19372579569508).

21210022010012 is a wasteful number, since it uses less digits than its factorization.

21210022010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154442 (or 154440 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21210022010012 its reverse (21001022001212), we get a palindrome (42211044011224).

The spelling of 21210022010012 in words is "twenty-one trillion, two hundred ten billion, twenty-two million, ten thousand, twelve".