1005020022451 has 16 divisors (see below), whose sum is σ = 1028113680384. Its totient is φ = 981999064224.

The previous prime is 1005020022439. The next prime is 1005020022493. The reversal of 1005020022451 is 1542200205001.

It is a cyclic number.

It is not a de Polignac number, because 1005020022451 - 2¹³ = 1005020014259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005020022421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77083305 + ... + 77096341.

It is an arithmetic number, because the mean of its divisors is an integer number (64257105024).

Almost surely, 2^{1005020022451} is an apocalyptic number.

1005020022451 is a deficient number, since it is larger than the sum of its proper divisors (23093657933).

1005020022451 is a wasteful number, since it uses less digits than its factorization.

1005020022451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15690.

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 1005020022451 its reverse (1542200205001), we get a palindrome (2547220227452).

The spelling of 1005020022451 in words is "one trillion, five billion, twenty million, twenty-two thousand, four hundred fifty-one".