1002202201021 has 16 divisors (see below), whose sum is σ = 1153814846976. Its totient is φ = 852700657536.

The previous prime is 1002202201009. The next prime is 1002202201027. The reversal of 1002202201021 is 1201022022001.

It is a happy number.

It is not a de Polignac number, because 1002202201021 - 2⁷ = 1002202200893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002202200992 and 1002202201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002202201027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18766860 + ... + 18820186.

It is an arithmetic number, because the mean of its divisors is an integer number (72113427936).

Almost surely, 2^{1002202201021} is an apocalyptic number.

It is an amenable number.

1002202201021 is a deficient number, since it is larger than the sum of its proper divisors (151612645955).

1002202201021 is a wasteful number, since it uses less digits than its factorization.

1002202201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73068.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1002202201021 its reverse (1201022022001), we get a palindrome (2203224223022).

The spelling of 1002202201021 in words is "one trillion, two billion, two hundred two million, two hundred one thousand, twenty-one".