2021101112001 has 4 divisors (see below), whose sum is σ = 2694801482672. Its totient is φ = 1347400741332.

The previous prime is 2021101111969. The next prime is 2021101112101. The reversal of 2021101112001 is 1002111011202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2021101112001 - 2⁵ = 2021101111969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021101112101) 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, 336850185331 + ... + 336850185336.

It is an arithmetic number, because the mean of its divisors is an integer number (673700370668).

Almost surely, 2^{2021101112001} is an apocalyptic number.

It is an amenable number.

2021101112001 is a deficient number, since it is larger than the sum of its proper divisors (673700370671).

2021101112001 is an equidigital number, since it uses as much as digits as its factorization.

2021101112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673700370670.

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

Adding to 2021101112001 its reverse (1002111011202), we get a palindrome (3023212123203).

The spelling of 2021101112001 in words is "two trillion, twenty-one billion, one hundred one million, one hundred twelve thousand, one".