222221022011 has 2 divisors, whose sum is σ = 222221022012. Its totient is φ = 222221022010.

The previous prime is 222221021951. The next prime is 222221022031. The reversal of 222221022011 is 110220122222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222221022011 - 2¹⁴ = 222221005627 is a prime.

It is a super-2 number, since 2×222221022011² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (222221022031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110511005 + 111110511006.

It is an arithmetic number, because the mean of its divisors is an integer number (111110511006).

Almost surely, 2^222221022011 is an apocalyptic number.

222221022011 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221022011 is an equidigital number, since it uses as much as digits as its factorization.

222221022011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222221022011 its reverse (110220122222), we get a palindrome (332441144233).

The spelling of 222221022011 in words is "two hundred twenty-two billion, two hundred twenty-one million, twenty-two thousand, eleven".