210020111201 has 4 divisors (see below), whose sum is σ = 211673812992. Its totient is φ = 208366409412.

The previous prime is 210020111183. The next prime is 210020111233. The reversal of 210020111201 is 102111020012.

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 210020111201 - 2²² = 210015916897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210020114201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 826850705 + ... + 826850958.

It is an arithmetic number, because the mean of its divisors is an integer number (52918453248).

Almost surely, 2^210020111201 is an apocalyptic number.

It is an amenable number.

210020111201 is a deficient number, since it is larger than the sum of its proper divisors (1653701791).

210020111201 is a wasteful number, since it uses less digits than its factorization.

210020111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653701790.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210020111201 its reverse (102111020012), we get a palindrome (312131131213).

The spelling of 210020111201 in words is "two hundred ten billion, twenty million, one hundred eleven thousand, two hundred one".