220221022230111 has 32 divisors (see below), whose sum is σ = 335698290688000. Its totient is φ = 125794312368480.

The previous prime is 220221022230107. The next prime is 220221022230151. The reversal of 220221022230111 is 111032220122022.

It is not a de Polignac number, because 220221022230111 - 2² = 220221022230107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221022230151) 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, 2542953990 + ... + 2543040588.

It is an arithmetic number, because the mean of its divisors is an integer number (10490571584000).

Almost surely, 2^{220221022230111} is an apocalyptic number.

220221022230111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220221022230111 is a deficient number, since it is larger than the sum of its proper divisors (115477268457889).

220221022230111 is a wasteful number, since it uses less digits than its factorization.

220221022230111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129739.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 220221022230111 its reverse (111032220122022), we get a palindrome (331253242352133).

The spelling of 220221022230111 in words is "two hundred twenty trillion, two hundred twenty-one billion, twenty-two million, two hundred thirty thousand, one hundred eleven".