222222202121011 has 4 divisors (see below), whose sum is σ = 222226737039352. Its totient is φ = 222217667202672.

The previous prime is 222222202120999. The next prime is 222222202121083. The reversal of 222222202121011 is 110121202222222.

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 222222202121011 - 2²⁵ = 222222168566579 is a prime.

It is a super-2 number, since 2×222222202121011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222222202127011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2267385666 + ... + 2267483671.

It is an arithmetic number, because the mean of its divisors is an integer number (55556684259838).

Almost surely, 2^{222222202121011} is an apocalyptic number.

222222202121011 is a deficient number, since it is larger than the sum of its proper divisors (4534918341).

222222202121011 is an equidigital number, since it uses as much as digits as its factorization.

222222202121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534918340.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222222202121011 its reverse (110121202222222), we get a palindrome (332343404343233).

The spelling of 222222202121011 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred two million, one hundred twenty-one thousand, eleven".