210221112011601 has 8 divisors (see below), whose sum is σ = 289960154498880. Its totient is φ = 135314738766032.

The previous prime is 210221112011539. The next prime is 210221112011621. The reversal of 210221112011601 is 106110211122012.

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

It is a cyclic number.

It is not a de Polignac number, because 210221112011601 - 2¹⁵ = 210221111978833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210221112011621) 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, 1208167310325 + ... + 1208167310498.

It is an arithmetic number, because the mean of its divisors is an integer number (36245019312360).

Almost surely, 2^{210221112011601} is an apocalyptic number.

It is an amenable number.

210221112011601 is a deficient number, since it is larger than the sum of its proper divisors (79739042487279).

210221112011601 is a wasteful number, since it uses less digits than its factorization.

210221112011601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416334620855.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 210221112011601 its reverse (106110211122012), we get a palindrome (316331323133613).

The spelling of 210221112011601 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred twelve million, eleven thousand, six hundred one".