20101212010151 has 2 divisors, whose sum is σ = 20101212010152. Its totient is φ = 20101212010150.

The previous prime is 20101212010111. The next prime is 20101212010177. The reversal of 20101212010151 is 15101021210102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20101212010151 - 2³⁸ = 19826334103207 is a prime.

It is a super-2 number, since 2×20101212010151² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20101212010111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050606005075 + 10050606005076.

It is an arithmetic number, because the mean of its divisors is an integer number (10050606005076).

Almost surely, 2^{20101212010151} is an apocalyptic number.

20101212010151 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101212010151 is an equidigital number, since it uses as much as digits as its factorization.

20101212010151 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 17.

Adding to 20101212010151 its reverse (15101021210102), we get a palindrome (35202233220253).

The spelling of 20101212010151 in words is "twenty trillion, one hundred one billion, two hundred twelve million, ten thousand, one hundred fifty-one".