20201112212122 has 32 divisors (see below), whose sum is σ = 31869311680512. Its totient is φ = 9584963532144.

The previous prime is 20201112212093. The next prime is 20201112212129. The reversal of 20201112212122 is 22121221110202.

It is a self number, because there is not a number n which added to its sum of digits gives 20201112212122.

It is not an unprimeable number, because it can be changed into a prime (20201112212129) 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, 212992803 + ... + 213087625.

It is an arithmetic number, because the mean of its divisors is an integer number (995915990016).

Almost surely, 2^{20201112212122} is an apocalyptic number.

20201112212122 is a deficient number, since it is larger than the sum of its proper divisors (11668199468390).

20201112212122 is a wasteful number, since it uses less digits than its factorization.

20201112212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131442.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20201112212122 its reverse (22121221110202), we get a palindrome (42322333322324).

The spelling of 20201112212122 in words is "twenty trillion, two hundred one billion, one hundred twelve million, two hundred twelve thousand, one hundred twenty-two".