2021201001101 has 4 divisors (see below), whose sum is σ = 2054335443804. Its totient is φ = 1988066558400.

The previous prime is 2021201001097. The next prime is 2021201001103. The reversal of 2021201001101 is 1011001021202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 806896179076 + 1214304822025 = 898274^2 + 1101955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021201001101 - 2² = 2021201001097 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 (2021201001103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16567221260 + ... + 16567221381.

It is an arithmetic number, because the mean of its divisors is an integer number (513583860951).

Almost surely, 2^{2021201001101} is an apocalyptic number.

It is an amenable number.

2021201001101 is a deficient number, since it is larger than the sum of its proper divisors (33134442703).

2021201001101 is an equidigital number, since it uses as much as digits as its factorization.

2021201001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33134442702.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2021201001101 its reverse (1011001021202), we get a palindrome (3032202022303).

The spelling of 2021201001101 in words is "two trillion, twenty-one billion, two hundred one million, one thousand, one hundred one".