222120601550 has 12 divisors (see below), whose sum is σ = 413144318976. Its totient is φ = 88848240600.

The previous prime is 222120601543. The next prime is 222120601561. The reversal of 222120601550 is 55106021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2221205966 + ... + 2221206065.

It is an arithmetic number, because the mean of its divisors is an integer number (34428693248).

Almost surely, 2^222120601550 is an apocalyptic number.

222120601550 is a deficient number, since it is larger than the sum of its proper divisors (191023717426).

222120601550 is a wasteful number, since it uses less digits than its factorization.

222120601550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442412043 (or 4442412038 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 222120601550 its reverse (55106021222), we get a palindrome (277226622772).

The spelling of 222120601550 in words is "two hundred twenty-two billion, one hundred twenty million, six hundred one thousand, five hundred fifty".