20106122145 has 16 divisors (see below), whose sum is σ = 33862943040. Its totient is φ = 10158882624.

The previous prime is 20106122131. The next prime is 20106122167. The reversal of 20106122145 is 54122160102.

It is not a de Polignac number, because 20106122145 - 2¹⁸ = 20105860001 is a prime.

It is a super-2 number, since 2×20106122145² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35273614 + ... + 35274183.

It is an arithmetic number, because the mean of its divisors is an integer number (2116433940).

Almost surely, 2^20106122145 is an apocalyptic number.

It is an amenable number.

20106122145 is a deficient number, since it is larger than the sum of its proper divisors (13756820895).

20106122145 is a wasteful number, since it uses less digits than its factorization.

20106122145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70547824.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 20106122145 its reverse (54122160102), we get a palindrome (74228282247).

The spelling of 20106122145 in words is "twenty billion, one hundred six million, one hundred twenty-two thousand, one hundred forty-five".