55212221170 has 16 divisors (see below), whose sum is σ = 101496509568. Its totient is φ = 21614997040.

The previous prime is 55212221153. The next prime is 55212221171. The reversal of 55212221170 is 7112221255.

It is not an unprimeable number, because it can be changed into a prime (55212221171) 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, 58735936 + ... + 58736875.

It is an arithmetic number, because the mean of its divisors is an integer number (6343531848).

Almost surely, 2^55212221170 is an apocalyptic number.

55212221170 is a deficient number, since it is larger than the sum of its proper divisors (46284288398).

55212221170 is a wasteful number, since it uses less digits than its factorization.

55212221170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117472865.

The product of its (nonzero) digits is 2800, while the sum is 28.

The spelling of 55212221170 in words is "fifty-five billion, two hundred twelve million, two hundred twenty-one thousand, one hundred seventy".