1000031221002 has 64 divisors (see below), whose sum is σ = 2302205068800. Its totient is φ = 286404972480.

The previous prime is 1000031220977. The next prime is 1000031221019. The reversal of 1000031221002 is 2001221300001.

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, 426213 + ... + 1477064.

It is an arithmetic number, because the mean of its divisors is an integer number (35971954200).

Almost surely, 2^{1000031221002} is an apocalyptic number.

1000031221002 is an abundant number, since it is smaller than the sum of its proper divisors (1302173847798).

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

1000031221002 is a wasteful number, since it uses less digits than its factorization.

1000031221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903731.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1000031221002 its reverse (2001221300001), we get a palindrome (3001252521003).

The spelling of 1000031221002 in words is "one trillion, thirty-one million, two hundred twenty-one thousand, two".