1005402222420 has 96 divisors (see below), whose sum is σ = 2846074758912. Its totient is φ = 265175851008.

The previous prime is 1005402222413. The next prime is 1005402222499. The reversal of 1005402222420 is 242222045001.

1005402222420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1752409 + ... + 2254271.

It is an arithmetic number, because the mean of its divisors is an integer number (29646612072).

Almost surely, 2^{1005402222420} is an apocalyptic number.

1005402222420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1005402222420 is an abundant number, since it is smaller than the sum of its proper divisors (1840672536492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1005402222420 is a wasteful number, since it uses less digits than its factorization.

1005402222420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502241 (or 502239 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 1005402222420 its reverse (242222045001), we get a palindrome (1247624267421).

The spelling of 1005402222420 in words is "one trillion, five billion, four hundred two million, two hundred twenty-two thousand, four hundred twenty".