2021011121101 has 8 divisors (see below), whose sum is σ = 2309736001664. Its totient is φ = 1732288492080.

The previous prime is 2021011121083. The next prime is 2021011121147. The reversal of 2021011121101 is 1011211101202.

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 2021011121101 - 2¹¹ = 2021011119053 is a prime.

It is a super-2 number, since 2×2021011121101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021011221101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2401051 + ... + 3131623.

It is an arithmetic number, because the mean of its divisors is an integer number (288717000208).

Almost surely, 2^{2021011121101} is an apocalyptic number.

It is an amenable number.

2021011121101 is a deficient number, since it is larger than the sum of its proper divisors (288724880563).

2021011121101 is an equidigital number, since it uses as much as digits as its factorization.

2021011121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125771.

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

Adding to 2021011121101 its reverse (1011211101202), we get a palindrome (3032222222303).

The spelling of 2021011121101 in words is "two trillion, twenty-one billion, eleven million, one hundred twenty-one thousand, one hundred one".