1212211012151 has 2 divisors, whose sum is σ = 1212211012152. Its totient is φ = 1212211012150.

The previous prime is 1212211012097. The next prime is 1212211012183. The reversal of 1212211012151 is 1512101122121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212211012151 - 2³⁸ = 937333105207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212211012751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105506075 + 606105506076.

It is an arithmetic number, because the mean of its divisors is an integer number (606105506076).

Almost surely, 2^{1212211012151} is an apocalyptic number.

1212211012151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212211012151 is an equidigital number, since it uses as much as digits as its factorization.

1212211012151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 20.

Adding to 1212211012151 its reverse (1512101122121), we get a palindrome (2724312134272).

The spelling of 1212211012151 in words is "one trillion, two hundred twelve billion, two hundred eleven million, twelve thousand, one hundred fifty-one".