221012011103 has 16 divisors (see below), whose sum is σ = 249718516992. Its totient is φ = 194193504000.

The previous prime is 221012011097. The next prime is 221012011123. The reversal of 221012011103 is 301110210122.

It is a cyclic number.

It is not a de Polignac number, because 221012011103 - 2⁸ = 221012010847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221012011123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4470638 + ... + 4519803.

It is an arithmetic number, because the mean of its divisors is an integer number (15607407312).

Almost surely, 2^221012011103 is an apocalyptic number.

221012011103 is a deficient number, since it is larger than the sum of its proper divisors (28706505889).

221012011103 is a wasteful number, since it uses less digits than its factorization.

221012011103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8990546.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 221012011103 its reverse (301110210122), we get a palindrome (522122221225).

The spelling of 221012011103 in words is "two hundred twenty-one billion, twelve million, eleven thousand, one hundred three".