1002021320215 has 32 divisors (see below), whose sum is σ = 1221898329216. Its totient is φ = 788692101120.

The previous prime is 1002021320207. The next prime is 1002021320221. The reversal of 1002021320215 is 5120231202001.

It is not a de Polignac number, because 1002021320215 - 2³ = 1002021320207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002021320192 and 1002021320201.

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, 358247197 + ... + 358249993.

It is an arithmetic number, because the mean of its divisors is an integer number (38184322788).

Almost surely, 2^{1002021320215} is an apocalyptic number.

1002021320215 is a deficient number, since it is larger than the sum of its proper divisors (219877009001).

1002021320215 is a wasteful number, since it uses less digits than its factorization.

1002021320215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 1002021320215 its reverse (5120231202001), we get a palindrome (6122252522216).

The spelling of 1002021320215 in words is "one trillion, two billion, twenty-one million, three hundred twenty thousand, two hundred fifteen".