10021102011091 has 4 divisors (see below), whose sum is σ = 10038001003272. Its totient is φ = 10004203018912.

The previous prime is 10021102011029. The next prime is 10021102011119. The reversal of 10021102011091 is 19011020112001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10021102011091 - 2²⁷ = 10020967793363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021102011491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8449495201 + ... + 8449496386.

It is an arithmetic number, because the mean of its divisors is an integer number (2509500250818).

Almost surely, 2^{10021102011091} is an apocalyptic number.

10021102011091 is a deficient number, since it is larger than the sum of its proper divisors (16898992181).

10021102011091 is an equidigital number, since it uses as much as digits as its factorization.

10021102011091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16898992180.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 10021102011091 its reverse (19011020112001), we get a palindrome (29032122123092).

The spelling of 10021102011091 in words is "ten trillion, twenty-one billion, one hundred two million, eleven thousand, ninety-one".