220111111001121 has 16 divisors (see below), whose sum is σ = 302950544156160. Its totient is φ = 142006269202560.

The previous prime is 220111111001069. The next prime is 220111111001123. The reversal of 220111111001121 is 121100111111022.

It is not a de Polignac number, because 220111111001121 - 2⁶ = 220111111001057 is a prime.

It is a super-2 number, since 2×220111111001121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220111111001121.

It is not an unprimeable number, because it can be changed into a prime (220111111001123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7432101 + ... + 22258893.

It is an arithmetic number, because the mean of its divisors is an integer number (18934409009760).

Almost surely, 2^{220111111001121} is an apocalyptic number.

It is an amenable number.

220111111001121 is a deficient number, since it is larger than the sum of its proper divisors (82839433155039).

220111111001121 is a wasteful number, since it uses less digits than its factorization.

220111111001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14986456.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 220111111001121 its reverse (121100111111022), we get a palindrome (341211222112143).

The spelling of 220111111001121 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred eleven million, one thousand, one hundred twenty-one".