20122153115105 has 16 divisors (see below), whose sum is σ = 24502263827328. Its totient is φ = 15860891088000.

The previous prime is 20122153115083. The next prime is 20122153115137. The reversal of 20122153115105 is 50151135122102.

It is not a de Polignac number, because 20122153115105 - 2¹⁴ = 20122153098721 is a prime.

It is a super-2 number, since 2×20122153115105² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 17482436 + ... + 18597845.

It is an arithmetic number, because the mean of its divisors is an integer number (1531391489208).

Almost surely, 2^{20122153115105} is an apocalyptic number.

It is an amenable number.

20122153115105 is a deficient number, since it is larger than the sum of its proper divisors (4380110712223).

20122153115105 is a wasteful number, since it uses less digits than its factorization.

20122153115105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36081928.

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 20122153115105 its reverse (50151135122102), we get a palindrome (70273288237207).

The spelling of 20122153115105 in words is "twenty trillion, one hundred twenty-two billion, one hundred fifty-three million, one hundred fifteen thousand, one hundred five".