222201011 has 6 divisors (see below), whose sum is σ = 225571500. Its totient is φ = 218880156.

The previous prime is 222200989. The next prime is 222201019. The reversal of 222201011 is 110102222.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-222201011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222200983 and 222201001.

It is not an unprimeable number, because it can be changed into a prime (222201019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20261 + ... + 29238.

It is an arithmetic number, because the mean of its divisors is an integer number (37595250).

Almost surely, 2^222201011 is an apocalyptic number.

222201011 is a deficient number, since it is larger than the sum of its proper divisors (3370489).

222201011 is an frugal number, since it uses more digits than its factorization.

222201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49633 (or 49566 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 222201011 is about 14906.4083869992. The cubic root of 222201011 is about 605.6875919898.

Adding to 222201011 its reverse (110102222), we get a palindrome (332303233).

The spelling of 222201011 in words is "two hundred twenty-two million, two hundred one thousand, eleven".