122143545341221 has 16 divisors (see below), whose sum is σ = 126803630274048. Its totient is φ = 117572045097600.

The previous prime is 122143545341179. The next prime is 122143545341249.

122143545341221 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 122143545341221 - 2⁴¹ = 119944522085669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122143545141221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52219786 + ... + 54508651.

It is an arithmetic number, because the mean of its divisors is an integer number (7925226892128).

Almost surely, 2^{122143545341221} is an apocalyptic number.

It is an amenable number.

122143545341221 is a deficient number, since it is larger than the sum of its proper divisors (4660084932827).

122143545341221 is a wasteful number, since it uses less digits than its factorization.

122143545341221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106728852.

The product of its digits is 230400, while the sum is 40.

The spelling of 122143545341221 in words is "one hundred twenty-two trillion, one hundred forty-three billion, five hundred forty-five million, three hundred forty-one thousand, two hundred twenty-one".