2101110202221 has 8 divisors (see below), whose sum is σ = 2801991230880. Its totient is φ = 1400484654192.

The previous prime is 2101110202207. The next prime is 2101110202223. The reversal of 2101110202221 is 1222020111012.

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

It is not a de Polignac number, because 2101110202221 - 2¹⁵ = 2101110169453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101110202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101110202223) 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, 63850966 + ... + 63883863.

It is an arithmetic number, because the mean of its divisors is an integer number (350248903860).

Almost surely, 2^{2101110202221} is an apocalyptic number.

It is an amenable number.

2101110202221 is a deficient number, since it is larger than the sum of its proper divisors (700881028659).

2101110202221 is a wasteful number, since it uses less digits than its factorization.

2101110202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127740315.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2101110202221 its reverse (1222020111012), we get a palindrome (3323130313233).

The spelling of 2101110202221 in words is "two trillion, one hundred one billion, one hundred ten million, two hundred two thousand, two hundred twenty-one".