222111201011 has 4 divisors (see below), whose sum is σ = 253841372592. Its totient is φ = 190381029432.

The previous prime is 222111201001. The next prime is 222111201029. The reversal of 222111201011 is 110102111222.

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 222111201011 - 2²² = 222107006707 is a prime.

It is a super-2 number, since 2×222111201011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222111201001) 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, 15865085780 + ... + 15865085793.

It is an arithmetic number, because the mean of its divisors is an integer number (63460343148).

Almost surely, 2^222111201011 is an apocalyptic number.

222111201011 is a deficient number, since it is larger than the sum of its proper divisors (31730171581).

222111201011 is an equidigital number, since it uses as much as digits as its factorization.

222111201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31730171580.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 222111201011 its reverse (110102111222), we get a palindrome (332213312233).

The spelling of 222111201011 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred one thousand, eleven".