1224105155 has 32 divisors (see below), whose sum is σ = 1838592000. Its totient is φ = 761668992.

The previous prime is 1224105139. The next prime is 1224105161. The reversal of 1224105155 is 5515014221.

It is not a de Polignac number, because 1224105155 - 2⁴ = 1224105139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4046 + ... + 49644.

It is an arithmetic number, because the mean of its divisors is an integer number (57456000).

Almost surely, 2^1224105155 is an apocalyptic number.

1224105155 is a deficient number, since it is larger than the sum of its proper divisors (614486845).

1224105155 is a wasteful number, since it uses less digits than its factorization.

1224105155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45683.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1224105155 is about 34987.2141646059. The cubic root of 1224105155 is about 1069.7268802435.

Adding to 1224105155 its reverse (5515014221), we get a palindrome (6739119376).

The spelling of 1224105155 in words is "one billion, two hundred twenty-four million, one hundred five thousand, one hundred fifty-five".