220121110011 has 32 divisors (see below), whose sum is σ = 324829612800. Its totient is φ = 131477575680.

The previous prime is 220121109997. The next prime is 220121110021. The reversal of 220121110011 is 110011121022.

It is not a de Polignac number, because 220121110011 - 2¹⁹ = 220120585723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220121110021) 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, 779595 + ... + 1023723.

It is an arithmetic number, because the mean of its divisors is an integer number (10150925400).

Almost surely, 2^220121110011 is an apocalyptic number.

220121110011 is a deficient number, since it is larger than the sum of its proper divisors (104708502789).

220121110011 is a wasteful number, since it uses less digits than its factorization.

220121110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244539.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 220121110011 its reverse (110011121022), we get a palindrome (330132231033).

The spelling of 220121110011 in words is "two hundred twenty billion, one hundred twenty-one million, one hundred ten thousand, eleven".