222221201022011 has 16 divisors (see below), whose sum is σ = 234563906088960. Its totient is φ = 209943227557440.

The previous prime is 222221201022001. The next prime is 222221201022017. The reversal of 222221201022011 is 110220102122222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222221201022011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221201022017) 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, 175416191 + ... + 176678471.

It is an arithmetic number, because the mean of its divisors is an integer number (14660244130560).

Almost surely, 2^{222221201022011} is an apocalyptic number.

222221201022011 is a deficient number, since it is larger than the sum of its proper divisors (12342705066949).

222221201022011 is a wasteful number, since it uses less digits than its factorization.

222221201022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287914.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222221201022011 its reverse (110220102122222), we get a palindrome (332441303144233).

The spelling of 222221201022011 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred one million, twenty-two thousand, eleven".