21120100202201 has 32 divisors (see below), whose sum is σ = 28756452888576. Its totient is φ = 14977319112000.

The previous prime is 21120100202177. The next prime is 21120100202203. The reversal of 21120100202201 is 10220200102112.

It is not a de Polignac number, because 21120100202201 - 2⁶ = 21120100202137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21120100202203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148513445 + ... + 148655586.

It is an arithmetic number, because the mean of its divisors is an integer number (898639152768).

Almost surely, 2^{21120100202201} is an apocalyptic number.

It is an amenable number.

21120100202201 is a deficient number, since it is larger than the sum of its proper divisors (7636352686375).

21120100202201 is a wasteful number, since it uses less digits than its factorization.

21120100202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297169133.

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

Adding to 21120100202201 its reverse (10220200102112), we get a palindrome (31340300304313).

The spelling of 21120100202201 in words is "twenty-one trillion, one hundred twenty billion, one hundred million, two hundred two thousand, two hundred one".