2021101120101 has 64 divisors (see below), whose sum is σ = 3107749939200. Its totient is φ = 1144486526976.

The previous prime is 2021101120091. The next prime is 2021101120123. The reversal of 2021101120101 is 1010211011202.

It is not a de Polignac number, because 2021101120101 - 2⁹ = 2021101119589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021101122101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1248363070 + ... + 1248364688.

It is an arithmetic number, because the mean of its divisors is an integer number (48558592800).

Almost surely, 2^{2021101120101} is an apocalyptic number.

2021101120101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2021101120101 is a deficient number, since it is larger than the sum of its proper divisors (1086648819099).

2021101120101 is a wasteful number, since it uses less digits than its factorization.

2021101120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2021101120101 its reverse (1010211011202), we get a palindrome (3031312131303).

The spelling of 2021101120101 in words is "two trillion, twenty-one billion, one hundred one million, one hundred twenty thousand, one hundred one".