20122212012212 has 12 divisors (see below), whose sum is σ = 35214963116256. Its totient is φ = 10060793979000.

The previous prime is 20122212012143. The next prime is 20122212012229. The reversal of 20122212012212 is 21221021222102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77861648 + ... + 78119655.

It is an arithmetic number, because the mean of its divisors is an integer number (2934580259688).

Almost surely, 2^{20122212012212} is an apocalyptic number.

It is an amenable number.

20122212012212 is a deficient number, since it is larger than the sum of its proper divisors (15092751104044).

20122212012212 is a wasteful number, since it uses less digits than its factorization.

20122212012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156013558 (or 156013556 counting only the distinct ones).

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

Adding to 20122212012212 its reverse (21221021222102), we get a palindrome (41343233234314).

The spelling of 20122212012212 in words is "twenty trillion, one hundred twenty-two billion, two hundred twelve million, twelve thousand, two hundred twelve".