1021001021101 has 8 divisors (see below), whose sum is σ = 1036870351200. Its totient is φ = 1005244640400.

The previous prime is 1021001021087. The next prime is 1021001021111. The reversal of 1021001021101 is 1011201001201.

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 1021001021101 - 2³⁷ = 883562067629 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 (1021001021111) 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, 28219131 + ... + 28255288.

It is an arithmetic number, because the mean of its divisors is an integer number (129608793900).

Almost surely, 2^{1021001021101} is an apocalyptic number.

It is an amenable number.

1021001021101 is a deficient number, since it is larger than the sum of its proper divisors (15869330099).

1021001021101 is a wasteful number, since it uses less digits than its factorization.

1021001021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56474699.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1021001021101 its reverse (1011201001201), we get a palindrome (2032202022302).

The spelling of 1021001021101 in words is "one trillion, twenty-one billion, one million, twenty-one thousand, one hundred one".