10101222120091 has 2 divisors, whose sum is σ = 10101222120092. Its totient is φ = 10101222120090.

The previous prime is 10101222120047. The next prime is 10101222120127. The reversal of 10101222120091 is 19002122210101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10101222120091 - 2²¹ = 10101220022939 is a prime.

It is not a weakly prime, because it can be changed into another prime (10101222220091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050611060045 + 5050611060046.

It is an arithmetic number, because the mean of its divisors is an integer number (5050611060046).

Almost surely, 2^{10101222120091} is an apocalyptic number.

10101222120091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101222120091 is an equidigital number, since it uses as much as digits as its factorization.

10101222120091 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 22.

Adding to 10101222120091 its reverse (19002122210101), we get a palindrome (29103344330192).

The spelling of 10101222120091 in words is "ten trillion, one hundred one billion, two hundred twenty-two million, one hundred twenty thousand, ninety-one".