20211099999998 has 16 divisors (see below), whose sum is σ = 32243928474240. Its totient is φ = 9468455179776.

The previous prime is 20211099999967. The next prime is 20211100000031. The reversal of 20211099999998 is 89999999011202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332826763 + ... + 1332841926.

It is an arithmetic number, because the mean of its divisors is an integer number (2015245529640).

Almost surely, 2^{20211099999998} is an apocalyptic number.

20211099999998 is a deficient number, since it is larger than the sum of its proper divisors (12032828474242).

20211099999998 is a wasteful number, since it uses less digits than its factorization.

20211099999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665668931.

The product of its (nonzero) digits is 153055008, while the sum is 77.

The spelling of 20211099999998 in words is "twenty trillion, two hundred eleven billion, ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".