2021151101 has 2 divisors, whose sum is σ = 2021151102. Its totient is φ = 2021151100.

The previous prime is 2021151071. The next prime is 2021151127. The reversal of 2021151101 is 1011511202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2018345476 + 2805625 = 44926^2 + 1675^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021151101 - 2²² = 2016956797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021151001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010575550 + 1010575551.

It is an arithmetic number, because the mean of its divisors is an integer number (1010575551).

Almost surely, 2^2021151101 is an apocalyptic number.

It is an amenable number.

2021151101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021151101 is an equidigital number, since it uses as much as digits as its factorization.

2021151101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 2021151101 is about 44957.2141152007. The cubic root of 2021151101 is about 1264.3469372005.

Adding to 2021151101 its reverse (1011511202), we get a palindrome (3032662303).

The spelling of 2021151101 in words is "two billion, twenty-one million, one hundred fifty-one thousand, one hundred one".