11452015202121 has 96 divisors (see below), whose sum is σ = 18289593023520. Its totient is φ = 6862173437952.

The previous prime is 11452015202107. The next prime is 11452015202153. The reversal of 11452015202121 is 12120251025411.

11452015202121 is a `hidden beast` number, since 1 + 1 + 4 + 520 + 15 + 2 + 0 + 2 + 121 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 1633437363600 + 9818577838521 = 1278060^2 + 3133461^2 .

It is not a de Polignac number, because 11452015202121 - 2¹³ = 11452015193929 is a prime.

It is a super-2 number, since 2×11452015202121² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11452015202101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 338830195 + ... + 338863991.

It is an arithmetic number, because the mean of its divisors is an integer number (190516593995).

Almost surely, 2^{11452015202121} is an apocalyptic number.

It is an amenable number.

11452015202121 is a deficient number, since it is larger than the sum of its proper divisors (6837577821399).

11452015202121 is a wasteful number, since it uses less digits than its factorization.

11452015202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34395 (or 34392 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

Adding to 11452015202121 its reverse (12120251025411), we get a palindrome (23572266227532).

The spelling of 11452015202121 in words is "eleven trillion, four hundred fifty-two billion, fifteen million, two hundred two thousand, one hundred twenty-one".