22122010012 has 6 divisors (see below), whose sum is σ = 38713517528. Its totient is φ = 11061005004.

The previous prime is 22122009971. The next prime is 22122010109. The reversal of 22122010012 is 21001022122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22122009974 and 22122010001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765251248 + ... + 2765251255.

Almost surely, 2^22122010012 is an apocalyptic number.

It is an amenable number.

22122010012 is a deficient number, since it is larger than the sum of its proper divisors (16591507516).

22122010012 is a wasteful number, since it uses less digits than its factorization.

22122010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5530502507 (or 5530502505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22122010012 its reverse (21001022122), we get a palindrome (43123032134).

The spelling of 22122010012 in words is "twenty-two billion, one hundred twenty-two million, ten thousand, twelve".