10011022021091 has 12 divisors (see below), whose sum is σ = 12541280334912. Its totient is φ = 7920808631568.

The previous prime is 10011022021061. The next prime is 10011022021139. The reversal of 10011022021091 is 19012022011001.

It is not a de Polignac number, because 10011022021091 - 2⁶ = 10011022021027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10011022021061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7857944435 + ... + 7857945708.

It is an arithmetic number, because the mean of its divisors is an integer number (1045106694576).

Almost surely, 2^{10011022021091} is an apocalyptic number.

10011022021091 is a deficient number, since it is larger than the sum of its proper divisors (2530258313821).

10011022021091 is a wasteful number, since it uses less digits than its factorization.

10011022021091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15715890170 (or 15715890163 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 10011022021091 its reverse (19012022011001), we get a palindrome (29023044032092).

The spelling of 10011022021091 in words is "ten trillion, eleven billion, twenty-two million, twenty-one thousand, ninety-one".