10211021202251 has 2 divisors, whose sum is σ = 10211021202252. Its totient is φ = 10211021202250.

The previous prime is 10211021202131. The next prime is 10211021202287. The reversal of 10211021202251 is 15220212011201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10211021202251 is a prime.

It is not a weakly prime, because it can be changed into another prime (10211021202451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105510601125 + 5105510601126.

It is an arithmetic number, because the mean of its divisors is an integer number (5105510601126).

Almost surely, 2^{10211021202251} is an apocalyptic number.

10211021202251 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211021202251 is an equidigital number, since it uses as much as digits as its factorization.

10211021202251 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 10211021202251 its reverse (15220212011201), we get a palindrome (25431233213452).

The spelling of 10211021202251 in words is "ten trillion, two hundred eleven billion, twenty-one million, two hundred two thousand, two hundred fifty-one".