121242014242222 has 4 divisors (see below), whose sum is σ = 181863021363336. Its totient is φ = 60621007121110.

The previous prime is 121242014242199. The next prime is 121242014242247. The reversal of 121242014242222 is 222242410242121.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×121242014242222² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30310503560554 + ... + 30310503560557.

It is an arithmetic number, because the mean of its divisors is an integer number (45465755340834).

Almost surely, 2^{121242014242222} is an apocalyptic number.

121242014242222 is a deficient number, since it is larger than the sum of its proper divisors (60621007121114).

121242014242222 is an equidigital number, since it uses as much as digits as its factorization.

121242014242222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60621007121113.

The product of its (nonzero) digits is 16384, while the sum is 31.

Adding to 121242014242222 its reverse (222242410242121), we get a palindrome (343484424484343).

The spelling of 121242014242222 in words is "one hundred twenty-one trillion, two hundred forty-two billion, fourteen million, two hundred forty-two thousand, two hundred twenty-two".