20001212022 has 96 divisors (see below), whose sum is σ = 45999394560. Its totient is φ = 5739085440.

The previous prime is 20001212017. The next prime is 20001212029. The reversal of 20001212022 is 22021210002.

20001212022 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 20001211989 and 20001212007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001212029) 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, 18034804 + ... + 18035912.

It is an arithmetic number, because the mean of its divisors is an integer number (479160360).

Almost surely, 2^20001212022 is an apocalyptic number.

20001212022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20001212022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22999697280).

20001212022 is an abundant number, since it is smaller than the sum of its proper divisors (25998182538).

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

20001212022 is a wasteful number, since it uses less digits than its factorization.

20001212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20001212022 its reverse (22021210002), we get a palindrome (42022422024).

The spelling of 20001212022 in words is "twenty billion, one million, two hundred twelve thousand, twenty-two".