221011202021103 has 24 divisors (see below), whose sum is σ = 351109994708928. Its totient is φ = 133113129855552.

The previous prime is 221011202021059. The next prime is 221011202021107. The reversal of 221011202021103 is 301120202110122.

It is a de Polignac number, because none of the positive numbers 2^k-221011202021103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221011202021107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20095575700 + ... + 20095586697.

It is an arithmetic number, because the mean of its divisors is an integer number (14629583112872).

Almost surely, 2^{221011202021103} is an apocalyptic number.

221011202021103 is a deficient number, since it is larger than the sum of its proper divisors (130098792687825).

221011202021103 is a wasteful number, since it uses less digits than its factorization.

221011202021103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40191162463 (or 40191162460 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 221011202021103 its reverse (301120202110122), we get a palindrome (522131404131225).

The spelling of 221011202021103 in words is "two hundred twenty-one trillion, eleven billion, two hundred two million, twenty-one thousand, one hundred three".