1020400322224 has 20 divisors (see below), whose sum is σ = 1987376549760. Its totient is φ = 507528954560.

The previous prime is 1020400322197. The next prime is 1020400322243. The reversal of 1020400322224 is 4222230040201.

It is a junction number, because it is equal to n+sod(n) for n = 1020400322195 and 1020400322204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166947259 + ... + 166953370.

It is an arithmetic number, because the mean of its divisors is an integer number (99368827488).

Almost surely, 2^{1020400322224} is an apocalyptic number.

It is an amenable number.

1020400322224 is a deficient number, since it is larger than the sum of its proper divisors (966976227536).

1020400322224 is a wasteful number, since it uses less digits than its factorization.

1020400322224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333900828 (or 333900822 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 1020400322224 its reverse (4222230040201), we get a palindrome (5242630362425).

The spelling of 1020400322224 in words is "one trillion, twenty billion, four hundred million, three hundred twenty-two thousand, two hundred twenty-four".