20211020100092 has 12 divisors (see below), whose sum is σ = 35369319441456. Its totient is φ = 10105500259680.

The previous prime is 20211020100071. The next prime is 20211020100107. The reversal of 20211020100092 is 29000102011202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4208417 + ... + 7624487.

It is an arithmetic number, because the mean of its divisors is an integer number (2947443286788).

Almost surely, 2^{20211020100092} is an apocalyptic number.

It is an amenable number.

20211020100092 is a deficient number, since it is larger than the sum of its proper divisors (15158299341364).

20211020100092 is a wasteful number, since it uses less digits than its factorization.

20211020100092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4895188 (or 4895186 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 20211020100092 its reverse (29000102011202), we get a palindrome (49211122111294).

The spelling of 20211020100092 in words is "twenty trillion, two hundred eleven billion, twenty million, one hundred thousand, ninety-two".