20222121000012 has 48 divisors (see below), whose sum is σ = 47273328372480. Its totient is φ = 6728082484032.

The previous prime is 20222120999923. The next prime is 20222121000041. The reversal of 20222121000012 is 21000012122202.

It is a junction number, because it is equal to n+sod(n) for n = 20222120999955 and 20222121000000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183717289 + ... + 183827327.

It is an arithmetic number, because the mean of its divisors is an integer number (984861007760).

Almost surely, 2^{20222121000012} is an apocalyptic number.

It is an amenable number.

20222121000012 is an abundant number, since it is smaller than the sum of its proper divisors (27051207372468).

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

20222121000012 is a wasteful number, since it uses less digits than its factorization.

20222121000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138590 (or 138588 counting only the distinct ones).

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

Adding to 20222121000012 its reverse (21000012122202), we get a palindrome (41222133122214).

The spelling of 20222121000012 in words is "twenty trillion, two hundred twenty-two billion, one hundred twenty-one million, twelve", and thus it is an aban number.