21201110120002 has 16 divisors (see below), whose sum is σ = 33672718645632. Its totient is φ = 9976884174400.

The previous prime is 21201110119997. The next prime is 21201110120041. The reversal of 21201110120002 is 20002101110212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193918 + ... + 6514585.

It is an arithmetic number, because the mean of its divisors is an integer number (2104544915352).

Almost surely, 2^{21201110120002} is an apocalyptic number.

21201110120002 is a deficient number, since it is larger than the sum of its proper divisors (12471608525630).

21201110120002 is a wasteful number, since it uses less digits than its factorization.

21201110120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6801473.

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

Adding to 21201110120002 its reverse (20002101110212), we get a palindrome (41203211230214).

The spelling of 21201110120002 in words is "twenty-one trillion, two hundred one billion, one hundred ten million, one hundred twenty thousand, two".