2072122046181 has 48 divisors (see below), whose sum is σ = 3371707123200. Its totient is φ = 1214881920000.

The previous prime is 2072122046161. The next prime is 2072122046191. The reversal of 2072122046181 is 1816402212702.

2072122046181 is a `hidden beast` number, since 2 + 0 + 7 + 2 + 12 + 20 + 4 + 618 + 1 = 666.

It is not a de Polignac number, because 2072122046181 - 2⁶ = 2072122046117 is a prime.

It is a super-2 number, since 2×2072122046181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072122046161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8475745 + ... + 8716793.

It is an arithmetic number, because the mean of its divisors is an integer number (70243898400).

Almost surely, 2^{2072122046181} is an apocalyptic number.

It is an amenable number.

2072122046181 is a deficient number, since it is larger than the sum of its proper divisors (1299585077019).

2072122046181 is a wasteful number, since it uses less digits than its factorization.

2072122046181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243898 (or 243895 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

Adding to 2072122046181 its reverse (1816402212702), we get a palindrome (3888524258883).

The spelling of 2072122046181 in words is "two trillion, seventy-two billion, one hundred twenty-two million, forty-six thousand, one hundred eighty-one".