2210110101221 has 4 divisors (see below), whose sum is σ = 2411029201344. Its totient is φ = 2009191001100.

The previous prime is 2210110101203. The next prime is 2210110101229. The reversal of 2210110101221 is 1221010110122.

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 2210110101221 - 2²² = 2210105906917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2210110101196 and 2210110101205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210110101229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100459550045 + ... + 100459550066.

It is an arithmetic number, because the mean of its divisors is an integer number (602757300336).

Almost surely, 2^{2210110101221} is an apocalyptic number.

It is an amenable number.

2210110101221 is a deficient number, since it is larger than the sum of its proper divisors (200919100123).

2210110101221 is a wasteful number, since it uses less digits than its factorization.

2210110101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200919100122.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2210110101221 its reverse (1221010110122), we get a palindrome (3431120211343).

The spelling of 2210110101221 in words is "two trillion, two hundred ten billion, one hundred ten million, one hundred one thousand, two hundred twenty-one".