100020210201251 has 2 divisors, whose sum is σ = 100020210201252. Its totient is φ = 100020210201250.

The previous prime is 100020210201199. The next prime is 100020210201323. The reversal of 100020210201251 is 152102012020001.

It is a weak prime.

It is an emirp because it is prime and its reverse (152102012020001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100020210201251 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (100020210201151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010105100625 + 50010105100626.

It is an arithmetic number, because the mean of its divisors is an integer number (50010105100626).

Almost surely, 2^{100020210201251} is an apocalyptic number.

100020210201251 is a deficient number, since it is larger than the sum of its proper divisors (1).

100020210201251 is an equidigital number, since it uses as much as digits as its factorization.

100020210201251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 100020210201251 its reverse (152102012020001), we get a palindrome (252122222221252).

The spelling of 100020210201251 in words is "one hundred trillion, twenty billion, two hundred ten million, two hundred one thousand, two hundred fifty-one".