221100202022111 has 8 divisors (see below), whose sum is σ = 221141840269200. Its totient is φ = 221058564689088.

The previous prime is 221100202022107. The next prime is 221100202022179. The reversal of 221100202022111 is 111220202001122.

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 221100202022111 - 2² = 221100202022107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221100202022111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100202022101) 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, 660723065 + ... + 661057613.

It is an arithmetic number, because the mean of its divisors is an integer number (27642730033650).

Almost surely, 2^{221100202022111} is an apocalyptic number.

221100202022111 is a deficient number, since it is larger than the sum of its proper divisors (41638247089).

221100202022111 is a wasteful number, since it uses less digits than its factorization.

221100202022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457033.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221100202022111 its reverse (111220202001122), we get a palindrome (332320404023233).

The spelling of 221100202022111 in words is "two hundred twenty-one trillion, one hundred billion, two hundred two million, twenty-two thousand, one hundred eleven".