20021113099 has 8 divisors (see below), whose sum is σ = 21570473232. Its totient is φ = 18473077920.

The previous prime is 20021113097. The next prime is 20021113127. The reversal of 20021113099 is 99031112002.

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 20021113099 - 2¹ = 20021113097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021113093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299737 + ... + 360394.

It is an arithmetic number, because the mean of its divisors is an integer number (2696309154).

Almost surely, 2^20021113099 is an apocalyptic number.

20021113099 is a deficient number, since it is larger than the sum of its proper divisors (1549360133).

20021113099 is a wasteful number, since it uses less digits than its factorization.

20021113099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662477.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 20021113099 in words is "twenty billion, twenty-one million, one hundred thirteen thousand, ninety-nine".