20121215244126 has 8 divisors (see below), whose sum is σ = 40242430488264. Its totient is φ = 6707071748040.

The previous prime is 20121215244083. The next prime is 20121215244173. The reversal of 20121215244126 is 62144251212102.

It is a sphenic number, since it is the product of 3 distinct primes.

20121215244126 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676767937005 + ... + 1676767937016.

It is an arithmetic number, because the mean of its divisors is an integer number (5030303811033).

Almost surely, 2^{20121215244126} is an apocalyptic number.

20121215244126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20121215244126 is a wasteful number, since it uses less digits than its factorization.

20121215244126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353535874026.

The product of its (nonzero) digits is 15360, while the sum is 33.

Adding to 20121215244126 its reverse (62144251212102), we get a palindrome (82265466456228).

The spelling of 20121215244126 in words is "twenty trillion, one hundred twenty-one billion, two hundred fifteen million, two hundred forty-four thousand, one hundred twenty-six".