2101020021151 has 2 divisors, whose sum is σ = 2101020021152. Its totient is φ = 2101020021150.

The previous prime is 2101020021083. The next prime is 2101020021157. The reversal of 2101020021151 is 1511200201012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101020021151 - 2³³ = 2092430086559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101020021157) 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 as a sum of consecutive naturals, namely, 1050510010575 + 1050510010576.

It is an arithmetic number, because the mean of its divisors is an integer number (1050510010576).

Almost surely, 2^{2101020021151} is an apocalyptic number.

2101020021151 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101020021151 is an equidigital number, since it uses as much as digits as its factorization.

2101020021151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 2101020021151 its reverse (1511200201012), we get a palindrome (3612220222163).

The spelling of 2101020021151 in words is "two trillion, one hundred one billion, twenty million, twenty-one thousand, one hundred fifty-one".