1021020020002 has 16 divisors (see below), whose sum is σ = 1553867520192. Its totient is φ = 503071278640.

The previous prime is 1021020019979. The next prime is 1021020020017. The reversal of 1021020020002 is 2000200201201.

1021020020002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1485793 + ... + 2061460.

It is an arithmetic number, because the mean of its divisors is an integer number (97116720012).

Almost surely, 2^{1021020020002} is an apocalyptic number.

1021020020002 is a deficient number, since it is larger than the sum of its proper divisors (532847500190).

1021020020002 is a wasteful number, since it uses less digits than its factorization.

1021020020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549353.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1021020020002 its reverse (2000200201201), we get a palindrome (3021220221203).

The spelling of 1021020020002 in words is "one trillion, twenty-one billion, twenty million, twenty thousand, two".