100121102022251 has 2 divisors, whose sum is σ = 100121102022252. Its totient is φ = 100121102022250.

The previous prime is 100121102022209. The next prime is 100121102022283. The reversal of 100121102022251 is 152220201121001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100121102022251 - 2¹⁸ = 100121101760107 is a prime.

It is not a weakly prime, because it can be changed into another prime (100121102022751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060551011125 + 50060551011126.

It is an arithmetic number, because the mean of its divisors is an integer number (50060551011126).

Almost surely, 2^{100121102022251} is an apocalyptic number.

100121102022251 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121102022251 is an equidigital number, since it uses as much as digits as its factorization.

100121102022251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 100121102022251 its reverse (152220201121001), we get a palindrome (252341303143252).

The spelling of 100121102022251 in words is "one hundred trillion, one hundred twenty-one billion, one hundred two million, twenty-two thousand, two hundred fifty-one".