220001221110111 has 32 divisors (see below), whose sum is σ = 343060657049088. Its totient is φ = 122782636892160.

The previous prime is 220001221110103. The next prime is 220001221110133. The reversal of 220001221110111 is 111011122100022.

It is a happy number.

It is not a de Polignac number, because 220001221110111 - 2³ = 220001221110103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220001221110101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4027551 + ... + 21359391.

It is an arithmetic number, because the mean of its divisors is an integer number (10720645532784).

Almost surely, 2^{220001221110111} is an apocalyptic number.

220001221110111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220001221110111 is a deficient number, since it is larger than the sum of its proper divisors (123059435938977).

220001221110111 is a wasteful number, since it uses less digits than its factorization.

220001221110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17345951.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 220001221110111 its reverse (111011122100022), we get a palindrome (331012343210133).

The spelling of 220001221110111 in words is "two hundred twenty trillion, one billion, two hundred twenty-one million, one hundred ten thousand, one hundred eleven".