21120120002210 has 32 divisors (see below), whose sum is σ = 40311399019392. Its totient is φ = 7939462516480.

The previous prime is 21120120002171. The next prime is 21120120002237. The reversal of 21120120002210 is 1220002102112.

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, 90832646 + ... + 91064865.

It is an arithmetic number, because the mean of its divisors is an integer number (1259731219356).

Almost surely, 2^{21120120002210} is an apocalyptic number.

21120120002210 is a deficient number, since it is larger than the sum of its proper divisors (19191279017182).

21120120002210 is a wasteful number, since it uses less digits than its factorization.

21120120002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181898218.

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

Adding to 21120120002210 its reverse (1220002102112), we get a palindrome (22340122104322).

The spelling of 21120120002210 in words is "twenty-one trillion, one hundred twenty billion, one hundred twenty million, two thousand, two hundred ten".