20121222300212 has 24 divisors (see below), whose sum is σ = 38413535381760. Its totient is φ = 9145940420160.

The previous prime is 20121222300211. The next prime is 20121222300217. The reversal of 20121222300212 is 21200322212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121222300211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4332989 + ... + 7682267.

It is an arithmetic number, because the mean of its divisors is an integer number (1600563974240).

Almost surely, 2^{20121222300212} is an apocalyptic number.

20121222300212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20121222300212 is a deficient number, since it is larger than the sum of its proper divisors (18292313081548).

20121222300212 is a wasteful number, since it uses less digits than its factorization.

20121222300212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3485831 (or 3485829 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20121222300212 its reverse (21200322212102), we get a palindrome (41321544512314).

The spelling of 20121222300212 in words is "twenty trillion, one hundred twenty-one billion, two hundred twenty-two million, three hundred thousand, two hundred twelve".