121311224442222 has 32 divisors (see below), whose sum is σ = 242949309576192. Its totient is φ = 40382600829984.

The previous prime is 121311224442157. The next prime is 121311224442347. The reversal of 121311224442222 is 222244422113121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183998923 + ... + 184657049.

It is an arithmetic number, because the mean of its divisors is an integer number (7592165924256).

Almost surely, 2^{121311224442222} is an apocalyptic number.

121311224442222 is an abundant number, since it is smaller than the sum of its proper divisors (121638085133970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121311224442222 is a wasteful number, since it uses less digits than its factorization.

121311224442222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699472.

The product of its digits is 24576, while the sum is 33.

Adding to 121311224442222 its reverse (222244422113121), we get a palindrome (343555646555343).

The spelling of 121311224442222 in words is "one hundred twenty-one trillion, three hundred eleven billion, two hundred twenty-four million, four hundred forty-two thousand, two hundred twenty-two".