2221255154 has 32 divisors (see below), whose sum is σ = 3582909120. Its totient is φ = 1029682368.

The previous prime is 2221255123. The next prime is 2221255177. The reversal of 2221255154 is 4515521222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396944 + ... + 402500.

It is an arithmetic number, because the mean of its divisors is an integer number (111965910).

Almost surely, 2^2221255154 is an apocalyptic number.

2221255154 is a deficient number, since it is larger than the sum of its proper divisors (1361653966).

2221255154 is a wasteful number, since it uses less digits than its factorization.

2221255154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5802.

The product of its digits is 8000, while the sum is 29.

The square root of 2221255154 is about 47130.1936554477. The cubic root of 2221255154 is about 1304.7665557190.

Adding to 2221255154 its reverse (4515521222), we get a palindrome (6736776376).

The spelling of 2221255154 in words is "two billion, two hundred twenty-one million, two hundred fifty-five thousand, one hundred fifty-four".