220111021001011 has 16 divisors (see below), whose sum is σ = 254839324887040. Its totient is φ = 186205553183520.

The previous prime is 220111021000909. The next prime is 220111021001021. The reversal of 220111021001011 is 110100120111022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 220111021001011 - 2²⁹ = 220110484130099 is a prime.

It is a super-2 number, since 2×220111021001011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220111021000982 and 220111021001000.

It is not an unprimeable number, because it can be changed into a prime (220111021001021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76417575 + ... + 79245616.

It is an arithmetic number, because the mean of its divisors is an integer number (15927457805440).

Almost surely, 2^{220111021001011} is an apocalyptic number.

220111021001011 is a deficient number, since it is larger than the sum of its proper divisors (34728303886029).

220111021001011 is a wasteful number, since it uses less digits than its factorization.

220111021001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155665834.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 220111021001011 its reverse (110100120111022), we get a palindrome (330211141112033).

The spelling of 220111021001011 in words is "two hundred twenty trillion, one hundred eleven billion, twenty-one million, one thousand, eleven".