20021100101122 has 32 divisors (see below), whose sum is σ = 30522381926400. Its totient is φ = 9848285503488.

The previous prime is 20021100101083. The next prime is 20021100101129. The reversal of 20021100101122 is 22110100112002.

It is not an unprimeable number, because it can be changed into a prime (20021100101129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47679279 + ... + 48097357.

It is an arithmetic number, because the mean of its divisors is an integer number (953824435200).

Almost surely, 2^{20021100101122} is an apocalyptic number.

20021100101122 is a deficient number, since it is larger than the sum of its proper divisors (10501281825278).

20021100101122 is a wasteful number, since it uses less digits than its factorization.

20021100101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419650.

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

Adding to 20021100101122 its reverse (22110100112002), we get a palindrome (42131200213124).

The spelling of 20021100101122 in words is "twenty trillion, twenty-one billion, one hundred million, one hundred one thousand, one hundred twenty-two".