220011001211 has 4 divisors (see below), whose sum is σ = 220713912072. Its totient is φ = 219308090352.

The previous prime is 220011001181. The next prime is 220011001267. The reversal of 220011001211 is 112100110022.

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 220011001211 - 2¹⁴ = 220010984827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220011001192 and 220011001201.

It is not an unprimeable number, because it can be changed into a prime (220011001271) 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, 351454961 + ... + 351455586.

It is an arithmetic number, because the mean of its divisors is an integer number (55178478018).

Almost surely, 2^220011001211 is an apocalyptic number.

220011001211 is a deficient number, since it is larger than the sum of its proper divisors (702910861).

220011001211 is an equidigital number, since it uses as much as digits as its factorization.

220011001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702910860.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 220011001211 its reverse (112100110022), we get a palindrome (332111111233).

The spelling of 220011001211 in words is "two hundred twenty billion, eleven million, one thousand, two hundred eleven".