10212121111151 has 2 divisors, whose sum is σ = 10212121111152. Its totient is φ = 10212121111150.

The previous prime is 10212121111039. The next prime is 10212121111187. The reversal of 10212121111151 is 15111112121201.

It is a strong prime.

It is an emirp because it is prime and its reverse (15111112121201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10212121111151 - 2²² = 10212116916847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10232121111151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106060555575 + 5106060555576.

It is an arithmetic number, because the mean of its divisors is an integer number (5106060555576).

Almost surely, 2^{10212121111151} is an apocalyptic number.

10212121111151 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212121111151 is an equidigital number, since it uses as much as digits as its factorization.

10212121111151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 20.

Adding to 10212121111151 its reverse (15111112121201), we get a palindrome (25323233232352).

The spelling of 10212121111151 in words is "ten trillion, two hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, one hundred fifty-one".