220011021121 has 4 divisors (see below), whose sum is σ = 220022013744. Its totient is φ = 220000028500.

The previous prime is 220011021119. The next prime is 220011021127. The reversal of 220011021121 is 121120110022.

220011021121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220011021121 - 2¹ = 220011021119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220011021127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5466235 + ... + 5506336.

It is an arithmetic number, because the mean of its divisors is an integer number (55005503436).

Almost surely, 2^220011021121 is an apocalyptic number.

It is an amenable number.

220011021121 is a deficient number, since it is larger than the sum of its proper divisors (10992623).

220011021121 is a wasteful number, since it uses less digits than its factorization.

220011021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10992622.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220011021121 its reverse (121120110022), we get a palindrome (341131131143).

The spelling of 220011021121 in words is "two hundred twenty billion, eleven million, twenty-one thousand, one hundred twenty-one".