2100122200157 has 2 divisors, whose sum is σ = 2100122200158. Its totient is φ = 2100122200156.

The previous prime is 2100122200097. The next prime is 2100122200177. The reversal of 2100122200157 is 7510022210012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1532592004441 + 567530195716 = 1237979^2 + 753346^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100122200157 - 2³² = 2095827232861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100122200177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050061100078 + 1050061100079.

It is an arithmetic number, because the mean of its divisors is an integer number (1050061100079).

Almost surely, 2^{2100122200157} is an apocalyptic number.

It is an amenable number.

2100122200157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100122200157 is an equidigital number, since it uses as much as digits as its factorization.

2100122200157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

Adding to 2100122200157 its reverse (7510022210012), we get a palindrome (9610144410169).

The spelling of 2100122200157 in words is "two trillion, one hundred billion, one hundred twenty-two million, two hundred thousand, one hundred fifty-seven".