210011121210157 has 2 divisors, whose sum is σ = 210011121210158. Its totient is φ = 210011121210156.

The previous prime is 210011121210091. The next prime is 210011121210199. The reversal of 210011121210157 is 751012121110012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207962183759236 + 2048937450921 = 14420894^2 + 1431411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210011121210157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210011121210857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105005560605078 + 105005560605079.

It is an arithmetic number, because the mean of its divisors is an integer number (105005560605079).

Almost surely, 2^{210011121210157} is an apocalyptic number.

It is an amenable number.

210011121210157 is a deficient number, since it is larger than the sum of its proper divisors (1).

210011121210157 is an equidigital number, since it uses as much as digits as its factorization.

210011121210157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 25.

Adding to 210011121210157 its reverse (751012121110012), we get a palindrome (961023242320169).

The spelling of 210011121210157 in words is "two hundred ten trillion, eleven billion, one hundred twenty-one million, two hundred ten thousand, one hundred fifty-seven".