1021202021002 has 8 divisors (see below), whose sum is σ = 1531967363136. Its totient is φ = 510546233292.

The previous prime is 1021202020973. The next prime is 1021202021017. The reversal of 1021202021002 is 2001202021201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 27365298 + ... + 27402589.

It is an arithmetic number, because the mean of its divisors is an integer number (191495920392).

Almost surely, 2^{1021202021002} is an apocalyptic number.

1021202021002 is a deficient number, since it is larger than the sum of its proper divisors (510765342134).

1021202021002 is an equidigital number, since it uses as much as digits as its factorization.

1021202021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54777212.

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

Adding to 1021202021002 its reverse (2001202021201), we get a palindrome (3022404042203).

The spelling of 1021202021002 in words is "one trillion, twenty-one billion, two hundred two million, twenty-one thousand, two".