1021144005412 has 24 divisors (see below), whose sum is σ = 1893181199616. Its totient is φ = 480268787328.

The previous prime is 1021144005331. The next prime is 1021144005451. The reversal of 1021144005412 is 2145004411201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4089868 + ... + 4332355.

It is an arithmetic number, because the mean of its divisors is an integer number (78882549984).

Almost surely, 2^{1021144005412} is an apocalyptic number.

It is an amenable number.

1021144005412 is a deficient number, since it is larger than the sum of its proper divisors (872037194204).

1021144005412 is a wasteful number, since it uses less digits than its factorization.

1021144005412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8424027 (or 8424025 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 1021144005412 its reverse (2145004411201), we get a palindrome (3166148416613).

The spelling of 1021144005412 in words is "one trillion, twenty-one billion, one hundred forty-four million, five thousand, four hundred twelve".