2100121120151 has 2 divisors, whose sum is σ = 2100121120152. Its totient is φ = 2100121120150.

The previous prime is 2100121120103. The next prime is 2100121120199. The reversal of 2100121120151 is 1510211210012.

It is a balanced prime because it is at equal distance from previous prime (2100121120103) and next prime (2100121120199).

It is a cyclic number.

It is not a de Polignac number, because 2100121120151 - 2¹⁰ = 2100121119127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100121123151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050060560075 + 1050060560076.

It is an arithmetic number, because the mean of its divisors is an integer number (1050060560076).

Almost surely, 2^{2100121120151} is an apocalyptic number.

2100121120151 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100121120151 is an equidigital number, since it uses as much as digits as its factorization.

2100121120151 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 2100121120151 its reverse (1510211210012), we get a palindrome (3610332330163).

The spelling of 2100121120151 in words is "two trillion, one hundred billion, one hundred twenty-one million, one hundred twenty thousand, one hundred fifty-one".