10002220121251 has 2 divisors, whose sum is σ = 10002220121252. Its totient is φ = 10002220121250.

The previous prime is 10002220121233. The next prime is 10002220121317. The reversal of 10002220121251 is 15212102220001.

It is a happy number.

10002220121251 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 10002220121251 - 2²⁵ = 10002186566819 is a prime.

It is not a weakly prime, because it can be changed into another prime (10002220421251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001110060625 + 5001110060626.

It is an arithmetic number, because the mean of its divisors is an integer number (5001110060626).

Almost surely, 2^{10002220121251} is an apocalyptic number.

10002220121251 is a deficient number, since it is larger than the sum of its proper divisors (1).

10002220121251 is an equidigital number, since it uses as much as digits as its factorization.

10002220121251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 10002220121251 its reverse (15212102220001), we get a palindrome (25214322341252).

The spelling of 10002220121251 in words is "ten trillion, two billion, two hundred twenty million, one hundred twenty-one thousand, two hundred fifty-one".