1021011212101 has 8 divisors (see below), whose sum is σ = 1031394805760. Its totient is φ = 1010664245808.

The previous prime is 1021011212069. The next prime is 1021011212147. The reversal of 1021011212101 is 1012121101201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021011212101 - 2⁵ = 1021011212069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021011212171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9100806 + ... + 9212311.

It is an arithmetic number, because the mean of its divisors is an integer number (128924350720).

Almost surely, 2^{1021011212101} is an apocalyptic number.

It is an amenable number.

1021011212101 is a deficient number, since it is larger than the sum of its proper divisors (10383593659).

1021011212101 is a wasteful number, since it uses less digits than its factorization.

1021011212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18313683.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1021011212101 its reverse (1012121101201), we get a palindrome (2033132313302).

The spelling of 1021011212101 in words is "one trillion, twenty-one billion, eleven million, two hundred twelve thousand, one hundred one".