55167212222 has 16 divisors (see below), whose sum is σ = 83581902432. Its totient is φ = 27306655200.

The previous prime is 55167212203. The next prime is 55167212237. The reversal of 55167212222 is 22221276155.

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, 1883663 + ... + 1912725.

It is an arithmetic number, because the mean of its divisors is an integer number (5223868902).

Almost surely, 2^55167212222 is an apocalyptic number.

55167212222 is a deficient number, since it is larger than the sum of its proper divisors (28414690210).

55167212222 is a wasteful number, since it uses less digits than its factorization.

55167212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38563.

The product of its digits is 33600, while the sum is 35.

Adding to 55167212222 its reverse (22221276155), we get a palindrome (77388488377).

The spelling of 55167212222 in words is "fifty-five billion, one hundred sixty-seven million, two hundred twelve thousand, two hundred twenty-two".