1002130021202 has 4 divisors (see below), whose sum is σ = 1503195031806. Its totient is φ = 501065010600.

The previous prime is 1002130021181. The next prime is 1002130021237. The reversal of 1002130021202 is 2021200312001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 507469592161 + 494660429041 = 712369^2 + 703321^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250532505299 + ... + 250532505302.

Almost surely, 2^{1002130021202} is an apocalyptic number.

1002130021202 is a deficient number, since it is larger than the sum of its proper divisors (501065010604).

1002130021202 is an equidigital number, since it uses as much as digits as its factorization.

1002130021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501065010603.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1002130021202 its reverse (2021200312001), we get a palindrome (3023330333203).

The spelling of 1002130021202 in words is "one trillion, two billion, one hundred thirty million, twenty-one thousand, two hundred two".