20211100100122 has 16 divisors (see below), whose sum is σ = 31648325235840. Its totient is φ = 9662035017712.

The previous prime is 20211100100117. The next prime is 20211100100141. The reversal of 20211100100122 is 22100100111202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94057222 + ... + 94271857.

It is an arithmetic number, because the mean of its divisors is an integer number (1978020327240).

Almost surely, 2^{20211100100122} is an apocalyptic number.

20211100100122 is a deficient number, since it is larger than the sum of its proper divisors (11437225135718).

20211100100122 is a wasteful number, since it uses less digits than its factorization.

20211100100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188331437.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20211100100122 its reverse (22100100111202), we get a palindrome (42311200211324).

The spelling of 20211100100122 in words is "twenty trillion, two hundred eleven billion, one hundred million, one hundred thousand, one hundred twenty-two".