220012222011 has 4 divisors (see below), whose sum is σ = 293349629352. Its totient is φ = 146674814672.

The previous prime is 220012222007. The next prime is 220012222013. The reversal of 220012222011 is 110222210022.

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 220012222011 - 2² = 220012222007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220012222013) 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, 36668703666 + ... + 36668703671.

It is an arithmetic number, because the mean of its divisors is an integer number (73337407338).

Almost surely, 2^220012222011 is an apocalyptic number.

220012222011 is a deficient number, since it is larger than the sum of its proper divisors (73337407341).

220012222011 is an equidigital number, since it uses as much as digits as its factorization.

220012222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73337407340.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220012222011 its reverse (110222210022), we get a palindrome (330234432033).

The spelling of 220012222011 in words is "two hundred twenty billion, twelve million, two hundred twenty-two thousand, eleven".