10202122012091 has 2 divisors, whose sum is σ = 10202122012092. Its totient is φ = 10202122012090.

The previous prime is 10202122012007. The next prime is 10202122012153. The reversal of 10202122012091 is 19021022120201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10202122012091 - 2⁴² = 5804075500987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (10202122012391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101061006045 + 5101061006046.

It is an arithmetic number, because the mean of its divisors is an integer number (5101061006046).

Almost surely, 2^{10202122012091} is an apocalyptic number.

10202122012091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202122012091 is an equidigital number, since it uses as much as digits as its factorization.

10202122012091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 10202122012091 its reverse (19021022120201), we get a palindrome (29223144132292).

It can be divided in two parts, 1020212 and 2012091, that added together give a palindrome (3032303).

The spelling of 10202122012091 in words is "ten trillion, two hundred two billion, one hundred twenty-two million, twelve thousand, ninety-one".