222121110012122 has 8 divisors (see below), whose sum is σ = 333225800908500. Its totient is φ = 111045843042624.

The previous prime is 222121110012097. The next prime is 222121110012167. The reversal of 222121110012122 is 221210011121222.

It can be written as a sum of positive squares in 2 ways, for example, as 218981129556121 + 3139980456001 = 14798011^2 + 1771999^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 222121110012094 and 222121110012103.

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, 7355962847 + ... + 7355993042.

Almost surely, 2^{222121110012122} is an apocalyptic number.

222121110012122 is a deficient number, since it is larger than the sum of its proper divisors (111104690896378).

222121110012122 is a wasteful number, since it uses less digits than its factorization.

222121110012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14711963440.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222121110012122 its reverse (221210011121222), we get a palindrome (443331121133344).

The spelling of 222121110012122 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred ten million, twelve thousand, one hundred twenty-two".