220011212011 has 4 divisors (see below), whose sum is σ = 223294961512. Its totient is φ = 216727462512.

The previous prime is 220011211997. The next prime is 220011212021. The reversal of 220011212011 is 110212110022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220011212011 - 2⁷ = 220011211883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220011211982 and 220011212000.

It is not an unprimeable number, because it can be changed into a prime (220011212021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641874650 + ... + 1641874783.

It is an arithmetic number, because the mean of its divisors is an integer number (55823740378).

Almost surely, 2^220011212011 is an apocalyptic number.

220011212011 is a deficient number, since it is larger than the sum of its proper divisors (3283749501).

220011212011 is an equidigital number, since it uses as much as digits as its factorization.

220011212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283749500.

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

Adding to 220011212011 its reverse (110212110022), we get a palindrome (330223322033).

The spelling of 220011212011 in words is "two hundred twenty billion, eleven million, two hundred twelve thousand, eleven".