10001022020251 has 2 divisors, whose sum is σ = 10001022020252. Its totient is φ = 10001022020250.

The previous prime is 10001022020239. The next prime is 10001022020299. The reversal of 10001022020251 is 15202022010001.

It is a happy number.

10001022020251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10001022020251 - 2¹⁵ = 10001021987483 is a prime.

It is not a weakly prime, because it can be changed into another prime (10001022020351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000511010125 + 5000511010126.

It is an arithmetic number, because the mean of its divisors is an integer number (5000511010126).

Almost surely, 2^{10001022020251} is an apocalyptic number.

10001022020251 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001022020251 is an equidigital number, since it uses as much as digits as its factorization.

10001022020251 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 16.

Adding to 10001022020251 its reverse (15202022010001), we get a palindrome (25203044030252).

The spelling of 10001022020251 in words is "ten trillion, one billion, twenty-two million, twenty thousand, two hundred fifty-one".