21022212200012 has 24 divisors (see below), whose sum is σ = 36808948564080. Its totient is φ = 10505370435840.

The previous prime is 21022212199993. The next prime is 21022212200057. The reversal of 21022212200012 is 21000221222012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138190712 + ... + 138342752.

It is an arithmetic number, because the mean of its divisors is an integer number (1533706190170).

Almost surely, 2^{21022212200012} is an apocalyptic number.

It is an amenable number.

21022212200012 is a deficient number, since it is larger than the sum of its proper divisors (15786736364068).

21022212200012 is a wasteful number, since it uses less digits than its factorization.

21022212200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170681 (or 170679 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21022212200012 its reverse (21000221222012), we get a palindrome (42022433422024).

The spelling of 21022212200012 in words is "twenty-one trillion, twenty-two billion, two hundred twelve million, two hundred thousand, twelve".