1000002101021 has 32 divisors (see below), whose sum is σ = 1287110393856. Its totient is φ = 754006176000.

The previous prime is 1000002100967. The next prime is 1000002101039. The reversal of 1000002101021 is 1201012000001.

It is not a de Polignac number, because 1000002101021 - 2³⁰ = 998928359197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000002101041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32335556 + ... + 32366466.

It is an arithmetic number, because the mean of its divisors is an integer number (40222199808).

Almost surely, 2^{1000002101021} is an apocalyptic number.

1000002101021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1000002101021 is a deficient number, since it is larger than the sum of its proper divisors (287108292835).

1000002101021 is a wasteful number, since it uses less digits than its factorization.

1000002101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44513.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1000002101021 its reverse (1201012000001), we get a palindrome (2201014101022).

The spelling of 1000002101021 in words is "one trillion, two million, one hundred one thousand, twenty-one".