220211221222011 has 16 divisors (see below), whose sum is σ = 296270715943584. Its totient is φ = 145483318001664.

The previous prime is 220211221221991. The next prime is 220211221222133. The reversal of 220211221222011 is 110222122112022.

It is not a de Polignac number, because 220211221222011 - 2¹¹ = 220211221219963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220211221223011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464055510 + ... + 464529803.

It is an arithmetic number, because the mean of its divisors is an integer number (18516919746474).

Almost surely, 2^{220211221222011} is an apocalyptic number.

220211221222011 is a deficient number, since it is larger than the sum of its proper divisors (76059494721573).

220211221222011 is a wasteful number, since it uses less digits than its factorization.

220211221222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928586030.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 220211221222011 its reverse (110222122112022), we get a palindrome (330433343334033).

The spelling of 220211221222011 in words is "two hundred twenty trillion, two hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, eleven".