20121200201022 has 32 divisors (see below), whose sum is σ = 40424321495040. Its totient is φ = 6676748727840.

The previous prime is 20121200201021. The next prime is 20121200201129. The reversal of 20121200201022 is 22010200212102.

It is a junction number, because it is equal to n+sod(n) for n = 20121200200992 and 20121200201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121200201021) 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, 38840379 + ... + 39355017.

It is an arithmetic number, because the mean of its divisors is an integer number (1263260046720).

Almost surely, 2^{20121200201022} is an apocalyptic number.

20121200201022 is an abundant number, since it is smaller than the sum of its proper divisors (20303121294018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20121200201022 is a wasteful number, since it uses less digits than its factorization.

20121200201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544088.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20121200201022 its reverse (22010200212102), we get a palindrome (42131400413124).

The spelling of 20121200201022 in words is "twenty trillion, one hundred twenty-one billion, two hundred million, two hundred one thousand, twenty-two".