11451221245045 has 128 divisors (see below), whose sum is σ = 14840675942400. Its totient is φ = 8466853183488.

The previous prime is 11451221245039. The next prime is 11451221245063. The reversal of 11451221245045 is 54054212215411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11451221245045 - 2⁴¹ = 9252197989493 is a prime.

It is a super-2 number, since 2×11451221245045² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11451221244995 and 11451221245013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 37300394782 + ... + 37300395088.

It is an arithmetic number, because the mean of its divisors is an integer number (115942780800).

Almost surely, 2^{11451221245045} is an apocalyptic number.

It is an amenable number.

11451221245045 is a deficient number, since it is larger than the sum of its proper divisors (3389454697355).

11451221245045 is a wasteful number, since it uses less digits than its factorization.

11451221245045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939.

The product of its (nonzero) digits is 64000, while the sum is 37.

The spelling of 11451221245045 in words is "eleven trillion, four hundred fifty-one billion, two hundred twenty-one million, two hundred forty-five thousand, forty-five".