20120001212212 has 24 divisors (see below), whose sum is σ = 38411031016512. Its totient is φ = 9145426617600.

The previous prime is 20120001212183. The next prime is 20120001212231. The reversal of 20120001212212 is 21221210002102.

It is a happy number.

It is a congruent 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, 21057028 + ... + 21991780.

It is an arithmetic number, because the mean of its divisors is an integer number (1600459625688).

Almost surely, 2^{20120001212212} is an apocalyptic number.

20120001212212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20120001212212 is a deficient number, since it is larger than the sum of its proper divisors (18291029804300).

20120001212212 is a wasteful number, since it uses less digits than its factorization.

20120001212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423959 (or 1423957 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20120001212212 its reverse (21221210002102), we get a palindrome (41341211214314).

The spelling of 20120001212212 in words is "twenty trillion, one hundred twenty billion, one million, two hundred twelve thousand, two hundred twelve".