20122212212012 has 24 divisors (see below), whose sum is σ = 35353758375936. Its totient is φ = 10021169490768.

The previous prime is 20122212211979. The next prime is 20122212212023. The reversal of 20122212212012 is 21021221222102.

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, 1297388 + ... + 6475155.

It is an arithmetic number, because the mean of its divisors is an integer number (1473073265664).

Almost surely, 2^{20122212212012} is an apocalyptic number.

It is an amenable number.

20122212212012 is a deficient number, since it is larger than the sum of its proper divisors (15231546163924).

20122212212012 is a wasteful number, since it uses less digits than its factorization.

20122212212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7775117 (or 7775115 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20122212212012 its reverse (21021221222102), we get a palindrome (41143433434114).

The spelling of 20122212212012 in words is "twenty trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twelve thousand, twelve".