210210221101 has 4 divisors (see below), whose sum is σ = 210222674272. Its totient is φ = 210197767932.

The previous prime is 210210221087. The next prime is 210210221141. The reversal of 210210221101 is 101122012012.

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 210210221101 - 2⁷ = 210210220973 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 (210210221141) 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, 6201231 + ... + 6235036.

It is an arithmetic number, because the mean of its divisors is an integer number (52555668568).

Almost surely, 2^210210221101 is an apocalyptic number.

It is an amenable number.

210210221101 is a deficient number, since it is larger than the sum of its proper divisors (12453171).

210210221101 is a wasteful number, since it uses less digits than its factorization.

210210221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12453170.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210210221101 its reverse (101122012012), we get a palindrome (311332233113).

The spelling of 210210221101 in words is "two hundred ten billion, two hundred ten million, two hundred twenty-one thousand, one hundred one".