210021221101101 has 8 divisors (see below), whose sum is σ = 280032130414560. Its totient is φ = 140012229594192.

The previous prime is 210021221101099. The next prime is 210021221101123. The reversal of 210021221101101 is 101101122120012.

It is a happy number.

210021221101101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210021221101101 - 2¹ = 210021221101099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210021221101141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479196091 + ... + 479634168.

It is an arithmetic number, because the mean of its divisors is an integer number (35004016301820).

Almost surely, 2^{210021221101101} is an apocalyptic number.

It is an amenable number.

210021221101101 is a deficient number, since it is larger than the sum of its proper divisors (70010909313459).

210021221101101 is an equidigital number, since it uses as much as digits as its factorization.

210021221101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958903275.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210021221101101 its reverse (101101122120012), we get a palindrome (311122343221113).

The spelling of 210021221101101 in words is "two hundred ten trillion, twenty-one billion, two hundred twenty-one million, one hundred one thousand, one hundred one".