121121000020151 has 2 divisors, whose sum is σ = 121121000020152. Its totient is φ = 121121000020150.

The previous prime is 121121000020121. The next prime is 121121000020199. The reversal of 121121000020151 is 151020000121121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121121000020151 - 2²⁶ = 121120932911287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121121000020121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560500010075 + 60560500010076.

It is an arithmetic number, because the mean of its divisors is an integer number (60560500010076).

Almost surely, 2^{121121000020151} is an apocalyptic number.

121121000020151 is a deficient number, since it is larger than the sum of its proper divisors (1).

121121000020151 is an equidigital number, since it uses as much as digits as its factorization.

121121000020151 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 121121000020151 its reverse (151020000121121), we get a palindrome (272141000141272).

The spelling of 121121000020151 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, twenty thousand, one hundred fifty-one".