1222146255 has 16 divisors (see below), whose sum is σ = 2133201024. Its totient is φ = 592555680.

The previous prime is 1222146251. The next prime is 1222146271. The reversal of 1222146255 is 5526412221.

It is not a de Polignac number, because 1222146255 - 2² = 1222146251 is a prime.

It is a super-2 number, since 2×1222146255² = 2987282937221050050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222146251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3703309 + ... + 3703638.

It is an arithmetic number, because the mean of its divisors is an integer number (133325064).

Almost surely, 2^1222146255 is an apocalyptic number.

1222146255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1222146255 is a deficient number, since it is larger than the sum of its proper divisors (911054769).

1222146255 is a wasteful number, since it uses less digits than its factorization.

1222146255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7406966.

The product of its digits is 9600, while the sum is 30.

The square root of 1222146255 is about 34959.2084435560. The cubic root of 1222146255 is about 1069.1559579512.

Adding to 1222146255 its reverse (5526412221), we get a palindrome (6748558476).

The spelling of 1222146255 in words is "one billion, two hundred twenty-two million, one hundred forty-six thousand, two hundred fifty-five".