100020121202051 has 2 divisors, whose sum is σ = 100020121202052. Its totient is φ = 100020121202050.

The previous prime is 100020121201993. The next prime is 100020121202077. The reversal of 100020121202051 is 150202121020001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100020121202051 is a prime.

It is not a weakly prime, because it can be changed into another prime (100020121204051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010060601025 + 50010060601026.

It is an arithmetic number, because the mean of its divisors is an integer number (50010060601026).

Almost surely, 2^{100020121202051} is an apocalyptic number.

100020121202051 is a deficient number, since it is larger than the sum of its proper divisors (1).

100020121202051 is an equidigital number, since it uses as much as digits as its factorization.

100020121202051 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 17.

Adding to 100020121202051 its reverse (150202121020001), we get a palindrome (250222242222052).

The spelling of 100020121202051 in words is "one hundred trillion, twenty billion, one hundred twenty-one million, two hundred two thousand, fifty-one".