122153343351221 has 8 divisors (see below), whose sum is σ = 150342576432384. Its totient is φ = 96648799134960.

The previous prime is 122153343351211. The next prime is 122153343351223.

122153343351221 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122153343351221 - 2¹⁰ = 122153343350197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122153343351223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671172216125 + ... + 671172216306.

It is an arithmetic number, because the mean of its divisors is an integer number (18792822054048).

Almost surely, 2^{122153343351221} is an apocalyptic number.

It is an amenable number.

122153343351221 is a deficient number, since it is larger than the sum of its proper divisors (28189233081163).

122153343351221 is a wasteful number, since it uses less digits than its factorization.

122153343351221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342344432451.

The product of its digits is 129600, while the sum is 38.

The spelling of 122153343351221 in words is "one hundred twenty-two trillion, one hundred fifty-three billion, three hundred forty-three million, three hundred fifty-one thousand, two hundred twenty-one".