10220121021191 has 2 divisors, whose sum is σ = 10220121021192. Its totient is φ = 10220121021190.

The previous prime is 10220121021161. The next prime is 10220121021203. The reversal of 10220121021191 is 19112012102201.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (19112012102201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10220121021191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10220121021161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110060510595 + 5110060510596.

It is an arithmetic number, because the mean of its divisors is an integer number (5110060510596).

Almost surely, 2^{10220121021191} is an apocalyptic number.

10220121021191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10220121021191 is an equidigital number, since it uses as much as digits as its factorization.

10220121021191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 10220121021191 its reverse (19112012102201), we get a palindrome (29332133123392).

The spelling of 10220121021191 in words is "ten trillion, two hundred twenty billion, one hundred twenty-one million, twenty-one thousand, one hundred ninety-one".