2472004652121 has 9 divisors (see below), whose sum is σ = 3570680199541. Its totient is φ = 1647999956892.

The previous prime is 2472004652111. The next prime is 2472004652129. The reversal of 2472004652121 is 1212564002742.

The square root of 2472004652121 is 1572261.

It is a perfect power (a square), and thus also a powerful number.

2472004652121 is a `hidden beast` number, since 2 + 4 + 72 + 0 + 0 + 46 + 521 + 21 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2472004652121 - 2⁹ = 2472004651609 is a prime.

It is a super-2 number, since 2×2472004652121² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2472004652129) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4454740 + ... + 4978826.

Almost surely, 2^{2472004652121} is an apocalyptic number.

2472004652121 is the 1572261-st square number.

2472004652121 is the 786131-st centered octagonal number.

It is an amenable number.

2472004652121 is a deficient number, since it is larger than the sum of its proper divisors (1098675547420).

2472004652121 is an frugal number, since it uses more digits than its factorization.

2472004652121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048180 (or 524090 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

Multiplying 2472004652121 by its sum of digits (36), we get a square (88992167476356 = 9433566²).

Adding to 2472004652121 its reverse (1212564002742), we get a palindrome (3684568654863).

The spelling of 2472004652121 in words is "two trillion, four hundred seventy-two billion, four million, six hundred fifty-two thousand, one hundred twenty-one".