20222101212012 has 192 divisors, whose sum is σ = 61222404096000. Its totient is φ = 5652018921024.

The previous prime is 20222101211993. The next prime is 20222101212043. The reversal of 20222101212012 is 21021210122202.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72310189 + ... + 72589307.

It is an arithmetic number, because the mean of its divisors is an integer number (318866688000).

Almost surely, 2^{20222101212012} 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 20222101212012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30611202048000).

20222101212012 is an abundant number, since it is smaller than the sum of its proper divisors (41000302883988).

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

20222101212012 is a wasteful number, since it uses less digits than its factorization.

20222101212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281225 (or 281217 counting only the distinct ones).

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

Adding to 20222101212012 its reverse (21021210122202), we get a palindrome (41243311334214).

The spelling of 20222101212012 in words is "twenty trillion, two hundred twenty-two billion, one hundred one million, two hundred twelve thousand, twelve".