210201021101 has 4 divisors (see below), whose sum is σ = 212861793600. Its totient is φ = 207540248604.

The previous prime is 210201021061. The next prime is 210201021127. The reversal of 210201021101 is 101120102012.

210201021101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-210201021101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210201024101) 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, 1330386131 + ... + 1330386288.

It is an arithmetic number, because the mean of its divisors is an integer number (53215448400).

Almost surely, 2^210201021101 is an apocalyptic number.

It is an amenable number.

210201021101 is a deficient number, since it is larger than the sum of its proper divisors (2660772499).

210201021101 is an equidigital number, since it uses as much as digits as its factorization.

210201021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660772498.

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

Adding to 210201021101 its reverse (101120102012), we get a palindrome (311321123113).

The spelling of 210201021101 in words is "two hundred ten billion, two hundred one million, twenty-one thousand, one hundred one".