21120210211201 has 4 divisors (see below), whose sum is σ = 21122430829504. Its totient is φ = 21117989592900.

The previous prime is 21120210211189. The next prime is 21120210211267. The reversal of 21120210211201 is 10211201202112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21120210211201 - 2⁵ = 21120210211169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21120210211501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110294885 + ... + 1110313906.

It is an arithmetic number, because the mean of its divisors is an integer number (5280607707376).

Almost surely, 2^{21120210211201} is an apocalyptic number.

It is an amenable number.

21120210211201 is a deficient number, since it is larger than the sum of its proper divisors (2220618303).

21120210211201 is an equidigital number, since it uses as much as digits as its factorization.

21120210211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220618302.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21120210211201 its reverse (10211201202112), we get a palindrome (31331411413313).

The spelling of 21120210211201 in words is "twenty-one trillion, one hundred twenty billion, two hundred ten million, two hundred eleven thousand, two hundred one".