1020001210109 has 32 divisors (see below), whose sum is σ = 1209391223040. Its totient is φ = 841707417600.

The previous prime is 1020001210087. The next prime is 1020001210139. The reversal of 1020001210109 is 9010121000201.

It is not a de Polignac number, because 1020001210109 - 2⁸ = 1020001209853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020001210139) 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, 119812637 + ... + 119821149.

It is an arithmetic number, because the mean of its divisors is an integer number (37793475720).

Almost surely, 2^{1020001210109} is an apocalyptic number.

It is an amenable number.

1020001210109 is a deficient number, since it is larger than the sum of its proper divisors (189390012931).

1020001210109 is a wasteful number, since it uses less digits than its factorization.

1020001210109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10181.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 1020001210109 in words is "one trillion, twenty billion, one million, two hundred ten thousand, one hundred nine".