220021312032111 has 16 divisors (see below), whose sum is σ = 295182279367040. Its totient is φ = 145770736307040.

The previous prime is 220021312032107. The next prime is 220021312032199. The reversal of 220021312032111 is 111230213120022.

220021312032111 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220021312032111 - 2² = 220021312032107 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 (220021312032311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8865541 + ... + 22773678.

It is an arithmetic number, because the mean of its divisors is an integer number (18448892460440).

Almost surely, 2^{220021312032111} is an apocalyptic number.

220021312032111 is a deficient number, since it is larger than the sum of its proper divisors (75160967334929).

220021312032111 is a wasteful number, since it uses less digits than its factorization.

220021312032111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31653606.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 220021312032111 its reverse (111230213120022), we get a palindrome (331251525152133).

The spelling of 220021312032111 in words is "two hundred twenty trillion, twenty-one billion, three hundred twelve million, thirty-two thousand, one hundred eleven".