20201000122212 has 1152 divisors, whose sum is σ = 67050798990336. Its totient is φ = 4589529071616.

The previous prime is 20201000122201. The next prime is 20201000122241. The reversal of 20201000122212 is 21222100010202.

It is a junction number, because it is equal to n+sod(n) for n = 20201000122191 and 20201000122200.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 63725552278 + ... + 63725552594.

It is an arithmetic number, because the mean of its divisors is an integer number (58203818568).

Almost surely, 2^{20201000122212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20201000122212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33525399495168).

20201000122212 is an abundant number, since it is smaller than the sum of its proper divisors (46849798868124).

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

20201000122212 is a wasteful number, since it uses less digits than its factorization.

20201000122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 672 counting only the distinct ones).

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

Adding to 20201000122212 its reverse (21222100010202), we get a palindrome (41423100132414).

The spelling of 20201000122212 in words is "twenty trillion, two hundred one billion, one hundred twenty-two thousand, two hundred twelve".