221012102111 has 8 divisors (see below), whose sum is σ = 221380983264. Its totient is φ = 220643297280.

The previous prime is 221012102107. The next prime is 221012102123. The reversal of 221012102111 is 111201210122.

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 221012102111 - 2² = 221012102107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221012102141) 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 7 ways as a sum of consecutive naturals, for example, 10301051 + ... + 10322483.

It is an arithmetic number, because the mean of its divisors is an integer number (27672622908).

Almost surely, 2^221012102111 is an apocalyptic number.

221012102111 is a deficient number, since it is larger than the sum of its proper divisors (368881153).

221012102111 is a wasteful number, since it uses less digits than its factorization.

221012102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38161.

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

Adding to 221012102111 its reverse (111201210122), we get a palindrome (332213312233).

It can be divided in two parts, 22101 and 2102111, that added together give a palindrome (2124212).

The spelling of 221012102111 in words is "two hundred twenty-one billion, twelve million, one hundred two thousand, one hundred eleven".