121001222111222 has 8 divisors (see below), whose sum is σ = 181848873002376. Its totient is φ = 60384931110432.

The previous prime is 121001222111197. The next prime is 121001222111249. The reversal of 121001222111222 is 222111222100121.

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 = 121001222111194 and 121001222111203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57839971283 + ... + 57839973374.

It is an arithmetic number, because the mean of its divisors is an integer number (22731109125297).

Almost surely, 2^{121001222111222} is an apocalyptic number.

121001222111222 is a deficient number, since it is larger than the sum of its proper divisors (60847650891154).

121001222111222 is a wasteful number, since it uses less digits than its factorization.

121001222111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115679945182.

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

Adding to 121001222111222 its reverse (222111222100121), we get a palindrome (343112444211343).

The spelling of 121001222111222 in words is "one hundred twenty-one trillion, one billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twenty-two".