153220544214121 has 16 divisors (see below), whose sum is σ = 155412281777040. Its totient is φ = 151031337799680.

The previous prime is 153220544214079. The next prime is 153220544214151. The reversal of 153220544214121 is 121412445022351.

It can be written as a sum of positive squares in 8 ways, for example, as 5932926777600 + 147287617436521 = 2435760^2 + 12136211^2 .

It is a cyclic number.

It is not a de Polignac number, because 153220544214121 - 2²¹ = 153220542116969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153220544214151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1044595575 + ... + 1044742243.

It is an arithmetic number, because the mean of its divisors is an integer number (9713267611065).

Almost surely, 2^{153220544214121} is an apocalyptic number.

It is an amenable number.

153220544214121 is a deficient number, since it is larger than the sum of its proper divisors (2191737562919).

153220544214121 is a wasteful number, since it uses less digits than its factorization.

153220544214121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155196.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 153220544214121 its reverse (121412445022351), we get a palindrome (274632989236472).

The spelling of 153220544214121 in words is "one hundred fifty-three trillion, two hundred twenty billion, five hundred forty-four million, two hundred fourteen thousand, one hundred twenty-one".