20122130154554 has 16 divisors (see below), whose sum is σ = 30529666271016. Its totient is φ = 9946184179200.

The previous prime is 20122130154551. The next prime is 20122130154559. The reversal of 20122130154554 is 45545103122102.

It can be written as a sum of positive squares in 4 ways, for example, as 20116884484225 + 5245670329 = 4485185^2 + 72427^2 .

It is a super-2 number, since 2×20122130154554² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20122130154551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152295857 + ... + 152427924.

Almost surely, 2^{20122130154554} is an apocalyptic number.

20122130154554 is a deficient number, since it is larger than the sum of its proper divisors (10407536116462).

20122130154554 is a wasteful number, since it uses less digits than its factorization.

20122130154554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304724161.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 20122130154554 its reverse (45545103122102), we get a palindrome (65667233276656).

The spelling of 20122130154554 in words is "twenty trillion, one hundred twenty-two billion, one hundred thirty million, one hundred fifty-four thousand, five hundred fifty-four".