1021011020002 has 16 divisors (see below), whose sum is σ = 1545636727800. Its totient is φ = 505799199360.

The previous prime is 1021011019993. The next prime is 1021011020119. The reversal of 1021011020002 is 2000201101201.

It can be written as a sum of positive squares in 4 ways, for example, as 951520260681 + 69490759321 = 975459^2 + 263611^2 .

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, 5407102 + ... + 5592742.

Almost surely, 2^{1021011020002} is an apocalyptic number.

1021011020002 is a deficient number, since it is larger than the sum of its proper divisors (524625707798).

1021011020002 is a wasteful number, since it uses less digits than its factorization.

1021011020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210981.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1021011020002 its reverse (2000201101201), we get a palindrome (3021212121203).

The spelling of 1021011020002 in words is "one trillion, twenty-one billion, eleven million, twenty thousand, two".