121222001122 has 8 divisors (see below), whose sum is σ = 181834929900. Its totient is φ = 60610357824.

The previous prime is 121222001081. The next prime is 121222001143. The reversal of 121222001122 is 221100222121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96776365921 + 24445635201 = 311089^2 + 156351^2 .

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 = 121222001096 and 121222001105.

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, 34347 + ... + 493582.

Almost surely, 2^121222001122 is an apocalyptic number.

121222001122 is a deficient number, since it is larger than the sum of its proper divisors (60612928778).

121222001122 is a wasteful number, since it uses less digits than its factorization.

121222001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642740.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121222001122 its reverse (221100222121), we get a palindrome (342322223243).

The spelling of 121222001122 in words is "one hundred twenty-one billion, two hundred twenty-two million, one thousand, one hundred twenty-two".