10121100111211 has 2 divisors, whose sum is σ = 10121100111212. Its totient is φ = 10121100111210.

The previous prime is 10121100111169. The next prime is 10121100111247. The reversal of 10121100111211 is 11211100112101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10121100111211 - 2¹¹ = 10121100109163 is a prime.

It is a super-2 number, since 2×10121100111211² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10121100111191 and 10121100111200.

It is not a weakly prime, because it can be changed into another prime (10121100111251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060550055605 + 5060550055606.

It is an arithmetic number, because the mean of its divisors is an integer number (5060550055606).

Almost surely, 2^{10121100111211} is an apocalyptic number.

10121100111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121100111211 is an equidigital number, since it uses as much as digits as its factorization.

10121100111211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 10121100111211 its reverse (11211100112101), we get a palindrome (21332200223312).

The spelling of 10121100111211 in words is "ten trillion, one hundred twenty-one billion, one hundred million, one hundred eleven thousand, two hundred eleven".