1012021021101 has 32 divisors (see below), whose sum is σ = 1371454156800. Its totient is φ = 663715514880.

The previous prime is 1012021021043. The next prime is 1012021021153. The reversal of 1012021021101 is 1011201202101.

It is not a de Polignac number, because 1012021021101 - 2⁷ = 1012021020973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012021021171) 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, 100086036 + ... + 100096146.

It is an arithmetic number, because the mean of its divisors is an integer number (42857942400).

Almost surely, 2^{1012021021101} is an apocalyptic number.

It is an amenable number.

1012021021101 is a deficient number, since it is larger than the sum of its proper divisors (359433135699).

1012021021101 is a wasteful number, since it uses less digits than its factorization.

1012021021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12069.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1012021021101 its reverse (1011201202101), we get a palindrome (2023222223202).

The spelling of 1012021021101 in words is "one trillion, twelve billion, twenty-one million, twenty-one thousand, one hundred one".