210102011011121 has 2 divisors, whose sum is σ = 210102011011122. Its totient is φ = 210102011011120.

The previous prime is 210102011011091. The next prime is 210102011011129. The reversal of 210102011011121 is 121110110201012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120489282051121 + 89612728960000 = 10976761^2 + 9466400^2 .

It is a cyclic number.

It is not a de Polignac number, because 210102011011121 - 2¹⁰ = 210102011010097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210102011011096 and 210102011011105.

It is not a weakly prime, because it can be changed into another prime (210102011011129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051005505560 + 105051005505561.

It is an arithmetic number, because the mean of its divisors is an integer number (105051005505561).

Almost surely, 2^{210102011011121} is an apocalyptic number.

It is an amenable number.

210102011011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

210102011011121 is an equidigital number, since it uses as much as digits as its factorization.

210102011011121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 210102011011121 its reverse (121110110201012), we get a palindrome (331212121212133).

The spelling of 210102011011121 in words is "two hundred ten trillion, one hundred two billion, eleven million, eleven thousand, one hundred twenty-one".