20012110222212 has 144 divisors (see below), whose sum is σ = 54203254769664. Its totient is φ = 6214590432000.

The previous prime is 20012110222187. The next prime is 20012110222219. The reversal of 20012110222212 is 21222201121002.

It is a happy number.

20012110222212 is a `hidden beast` number, since 20 + 0 + 1 + 211 + 0 + 222 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20012110222219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72262 + ... + 6326882.

It is an arithmetic number, because the mean of its divisors is an integer number (376411491456).

Almost surely, 2^{20012110222212} 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 20012110222212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27101627384832).

20012110222212 is an abundant number, since it is smaller than the sum of its proper divisors (34191144547452).

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

20012110222212 is a wasteful number, since it uses less digits than its factorization.

20012110222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6254770 (or 6254765 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20012110222212 its reverse (21222201121002), we get a palindrome (41234311343214).

The spelling of 20012110222212 in words is "twenty trillion, twelve billion, one hundred ten million, two hundred twenty-two thousand, two hundred twelve".