2154222355 has 8 divisors (see below), whose sum is σ = 2585367792. Its totient is φ = 1723177248.

The previous prime is 2154222349. The next prime is 2154222379. The reversal of 2154222355 is 5532224512.

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

It is a cyclic number.

It is not a de Polignac number, because 2154222355 - 2⁷ = 2154222227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35437 + ... + 74593.

It is an arithmetic number, because the mean of its divisors is an integer number (323170974).

Almost surely, 2^2154222355 is an apocalyptic number.

2154222355 is a deficient number, since it is larger than the sum of its proper divisors (431145437).

2154222355 is a wasteful number, since it uses less digits than its factorization.

2154222355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50165.

The product of its digits is 24000, while the sum is 31.

The square root of 2154222355 is about 46413.6009699743. The cubic root of 2154222355 is about 1291.5072331184.

Adding to 2154222355 its reverse (5532224512), we get a palindrome (7686446867).

The spelling of 2154222355 in words is "two billion, one hundred fifty-four million, two hundred twenty-two thousand, three hundred fifty-five".