55100451231212 has 48 divisors (see below), whose sum is σ = 98674142784000. Its totient is φ = 26910214524864.

The previous prime is 55100451231151. The next prime is 55100451231227. The reversal of 55100451231212 is 21213215400155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309344114 + ... + 309522182.

It is an arithmetic number, because the mean of its divisors is an integer number (2055711308000).

Almost surely, 2^{55100451231212} is an apocalyptic number.

It is an amenable number.

55100451231212 is a deficient number, since it is larger than the sum of its proper divisors (43573691552788).

55100451231212 is a wasteful number, since it uses less digits than its factorization.

55100451231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181398 (or 181396 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 55100451231212 its reverse (21213215400155), we get a palindrome (76313666631367).

The spelling of 55100451231212 in words is "fifty-five trillion, one hundred billion, four hundred fifty-one million, two hundred thirty-one thousand, two hundred twelve".