1021100020201 has 8 divisors (see below), whose sum is σ = 1050089111424. Its totient is φ = 992471042160.

The previous prime is 1021100020159. The next prime is 1021100020211. The reversal of 1021100020201 is 1020200011201.

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

It is not a de Polignac number, because 1021100020201 - 2¹⁷ = 1021099889129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021100020211) 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, 90022545 + ... + 90033886.

It is an arithmetic number, because the mean of its divisors is an integer number (131261138928).

Almost surely, 2^{1021100020201} is an apocalyptic number.

It is an amenable number.

1021100020201 is a deficient number, since it is larger than the sum of its proper divisors (28989091223).

1021100020201 is a wasteful number, since it uses less digits than its factorization.

1021100020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180056591.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1021100020201 its reverse (1020200011201), we get a palindrome (2041300031402).

The spelling of 1021100020201 in words is "one trillion, twenty-one billion, one hundred million, twenty thousand, two hundred one".