1002450244221 has 96 divisors (see below), whose sum is σ = 1594545109248. Its totient is φ = 627991626240.

The previous prime is 1002450244219. The next prime is 1002450244303. The reversal of 1002450244221 is 1224420542001.

It is a happy number.

It is not a de Polignac number, because 1002450244221 - 2¹ = 1002450244219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002450244721) 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, 421727985 + ... + 421730361.

It is an arithmetic number, because the mean of its divisors is an integer number (16609844888).

Almost surely, 2^{1002450244221} is an apocalyptic number.

It is an amenable number.

1002450244221 is a deficient number, since it is larger than the sum of its proper divisors (592094865027).

1002450244221 is a wasteful number, since it uses less digits than its factorization.

1002450244221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713 (or 3701 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 1002450244221 its reverse (1224420542001), we get a palindrome (2226870786222).

The spelling of 1002450244221 in words is "one trillion, two billion, four hundred fifty million, two hundred forty-four thousand, two hundred twenty-one".