1145122135121 has 8 divisors (see below), whose sum is σ = 1205401630080. Its totient is φ = 1084843631088.

The previous prime is 1145122135111. The next prime is 1145122135123. The reversal of 1145122135121 is 1215312215411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1145122135121 - 2⁶ = 1145122135057 is a prime.

It is a super-2 number, since 2×1145122135121² (a number of 25 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 (1145122135123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3937115 + ... + 4217951.

It is an arithmetic number, because the mean of its divisors is an integer number (150675203760).

Almost surely, 2^{1145122135121} is an apocalyptic number.

It is an amenable number.

1145122135121 is a deficient number, since it is larger than the sum of its proper divisors (60279494959).

1145122135121 is a wasteful number, since it uses less digits than its factorization.

1145122135121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495463.

The product of its digits is 2400, while the sum is 29.

The spelling of 1145122135121 in words is "one trillion, one hundred forty-five billion, one hundred twenty-two million, one hundred thirty-five thousand, one hundred twenty-one".