10002120213091 has 2 divisors, whose sum is σ = 10002120213092. Its totient is φ = 10002120213090.

The previous prime is 10002120212927. The next prime is 10002120213143. The reversal of 10002120213091 is 19031202120001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10002120213091 - 2¹⁵ = 10002120180323 is a prime.

It is not a weakly prime, because it can be changed into another prime (10002150213091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001060106545 + 5001060106546.

It is an arithmetic number, because the mean of its divisors is an integer number (5001060106546).

Almost surely, 2^{10002120213091} is an apocalyptic number.

10002120213091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10002120213091 is an equidigital number, since it uses as much as digits as its factorization.

10002120213091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 10002120213091 its reverse (19031202120001), we get a palindrome (29033322333092).

The spelling of 10002120213091 in words is "ten trillion, two billion, one hundred twenty million, two hundred thirteen thousand, ninety-one".