2102122050157 has 2 divisors, whose sum is σ = 2102122050158. Its totient is φ = 2102122050156.

The previous prime is 2102122050143. The next prime is 2102122050173. The reversal of 2102122050157 is 7510502212012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2101531511556 + 590538601 = 1449666^2 + 24301^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102122050157 - 2¹⁹ = 2102121525869 is a prime.

It is a super-2 number, since 2×2102122050157² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102122050107) 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, 1051061025078 + 1051061025079.

It is an arithmetic number, because the mean of its divisors is an integer number (1051061025079).

Almost surely, 2^{2102122050157} is an apocalyptic number.

It is an amenable number.

2102122050157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102122050157 is an equidigital number, since it uses as much as digits as its factorization.

2102122050157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 28.

Adding to 2102122050157 its reverse (7510502212012), we get a palindrome (9612624262169).

The spelling of 2102122050157 in words is "two trillion, one hundred two billion, one hundred twenty-two million, fifty thousand, one hundred fifty-seven".