221022001010111 has 12 divisors (see below), whose sum is σ = 270639184911480. Its totient is φ = 179476512097680.

The previous prime is 221022001010101. The next prime is 221022001010137. The reversal of 221022001010111 is 111010100220122.

It is not a de Polignac number, because 221022001010111 - 2¹⁰ = 221022001009087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022001010101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118701395960 + ... + 118701397821.

It is an arithmetic number, because the mean of its divisors is an integer number (22553265409290).

Almost surely, 2^{221022001010111} is an apocalyptic number.

221022001010111 is a deficient number, since it is larger than the sum of its proper divisors (49617183901369).

221022001010111 is a wasteful number, since it uses less digits than its factorization.

221022001010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237402793814 (or 237402793807 counting only the distinct ones).

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

Adding to 221022001010111 its reverse (111010100220122), we get a palindrome (332032101230233).

The spelling of 221022001010111 in words is "two hundred twenty-one trillion, twenty-two billion, one million, ten thousand, one hundred eleven".