2021001100057 has 2 divisors, whose sum is σ = 2021001100058. Its totient is φ = 2021001100056.

The previous prime is 2021001100051. The next prime is 2021001100133. The reversal of 2021001100057 is 7500011001202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1771411931136 + 249589168921 = 1330944^2 + 499589^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021001100057 - 2²³ = 2020992711449 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021001100051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010500550028 + 1010500550029.

It is an arithmetic number, because the mean of its divisors is an integer number (1010500550029).

Almost surely, 2^{2021001100057} is an apocalyptic number.

It is an amenable number.

2021001100057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021001100057 is an equidigital number, since it uses as much as digits as its factorization.

2021001100057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

Adding to 2021001100057 its reverse (7500011001202), we get a palindrome (9521012101259).

The spelling of 2021001100057 in words is "two trillion, twenty-one billion, one million, one hundred thousand, fifty-seven".