1145104221621 has 8 divisors (see below), whose sum is σ = 1527518099200. Its totient is φ = 763046579232.

The previous prime is 1145104221593. The next prime is 1145104221689. The reversal of 1145104221621 is 1261224015411.

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

It is not a de Polignac number, because 1145104221621 - 2⁶ = 1145104221557 is a prime.

It is a super-2 number, since 2×1145104221621² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145104201621) 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, 89051296 + ... + 89064153.

It is an arithmetic number, because the mean of its divisors is an integer number (190939762400).

Almost surely, 2^{1145104221621} is an apocalyptic number.

It is an amenable number.

1145104221621 is a deficient number, since it is larger than the sum of its proper divisors (382413877579).

1145104221621 is a wasteful number, since it uses less digits than its factorization.

1145104221621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178117595.

The product of its (nonzero) digits is 3840, while the sum is 30.

The spelling of 1145104221621 in words is "one trillion, one hundred forty-five billion, one hundred four million, two hundred twenty-one thousand, six hundred twenty-one".