20021110111099 has 8 divisors (see below), whose sum is σ = 20038785780032. Its totient is φ = 20003440448520.

The previous prime is 20021110111069. The next prime is 20021110111111. The reversal of 20021110111099 is 99011101112002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20021110111099 - 2⁹ = 20021110110587 is a prime.

It is a super-2 number, since 2×20021110111099² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021110111019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5181112 + ... + 8178394.

It is an arithmetic number, because the mean of its divisors is an integer number (2504848222504).

Almost surely, 2^{20021110111099} is an apocalyptic number.

20021110111099 is a deficient number, since it is larger than the sum of its proper divisors (17675668933).

20021110111099 is a wasteful number, since it uses less digits than its factorization.

20021110111099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003177.

The product of its (nonzero) digits is 324, while the sum is 28.

The spelling of 20021110111099 in words is "twenty trillion, twenty-one billion, one hundred ten million, one hundred eleven thousand, ninety-nine".