222222201221122 has 8 divisors (see below), whose sum is σ = 333333377651916. Its totient is φ = 111111075337152.

The previous prime is 222222201221101. The next prime is 222222201221131. The reversal of 222222201221122 is 221122102222222.

It can be written as a sum of positive squares in 2 ways, for example, as 222210927241081 + 11273980041 = 14906741^2 + 106179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×222222201221122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1531078 + ... + 21137374.

Almost surely, 2^{222222201221122} is an apocalyptic number.

222222201221122 is a deficient number, since it is larger than the sum of its proper divisors (111111176430794).

222222201221122 is a wasteful number, since it uses less digits than its factorization.

222222201221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25273412.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 222222201221122 its reverse (221122102222222), we get a palindrome (443344303443344).

The spelling of 222222201221122 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred one million, two hundred twenty-one thousand, one hundred twenty-two".