121342222243122 has 32 divisors (see below), whose sum is σ = 255666187883520. Its totient is φ = 38287264813200.

The previous prime is 121342222243097. The next prime is 121342222243133. The reversal of 121342222243122 is 221342222243121.

It is a super-2 number, since 2×121342222243122² (a number of 29 digits) contains 22 as substring.

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, 435022254 + ... + 435301097.

It is an arithmetic number, because the mean of its divisors is an integer number (7989568371360).

Almost surely, 2^{121342222243122} is an apocalyptic number.

121342222243122 is an abundant number, since it is smaller than the sum of its proper divisors (134323965640398).

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

121342222243122 is a wasteful number, since it uses less digits than its factorization.

121342222243122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870324598.

The product of its digits is 36864, while the sum is 33.

Adding to 121342222243122 its reverse (221342222243121), we get a palindrome (342684444486243).

Subtracting 121342222243122 from its reverse (221342222243121), we obtain a palindrome (99999999999999).

The spelling of 121342222243122 in words is "one hundred twenty-one trillion, three hundred forty-two billion, two hundred twenty-two million, two hundred forty-three thousand, one hundred twenty-two".