1222103505 has 32 divisors (see below), whose sum is σ = 2331869184. Its totient is φ = 534384576.

The previous prime is 1222103437. The next prime is 1222103507. The reversal of 1222103505 is 5053012221.

It is not a de Polignac number, because 1222103505 - 2¹³ = 1222095313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1222103507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250609 + ... + 255438.

It is an arithmetic number, because the mean of its divisors is an integer number (72870912).

Almost surely, 2^1222103505 is an apocalyptic number.

1222103505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222103505 is a deficient number, since it is larger than the sum of its proper divisors (1109765679).

1222103505 is a wasteful number, since it uses less digits than its factorization.

1222103505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506085.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1222103505 is about 34958.5970113218. The cubic root of 1222103505 is about 1069.1434916445.

Adding to 1222103505 its reverse (5053012221), we get a palindrome (6275115726).

The spelling of 1222103505 in words is "one billion, two hundred twenty-two million, one hundred three thousand, five hundred five".