1222421122 has 8 divisors (see below), whose sum is σ = 1974680316. Its totient is φ = 564194352.

The previous prime is 1222421119. The next prime is 1222421131. The reversal of 1222421122 is 2211242221.

It can be written as a sum of positive squares in 2 ways, for example, as 1220733721 + 1687401 = 34939^2 + 1299^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1222421122.

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 3 ways as a sum of consecutive naturals, for example, 23508073 + ... + 23508124.

Almost surely, 2^1222421122 is an apocalyptic number.

1222421122 is a deficient number, since it is larger than the sum of its proper divisors (752259194).

1222421122 is a wasteful number, since it uses less digits than its factorization.

1222421122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47016212.

The product of its digits is 256, while the sum is 19.

The square root of 1222421122 is about 34963.1394757393. The cubic root of 1222421122 is about 1069.2361048405.

Adding to 1222421122 its reverse (2211242221), we get a palindrome (3433663343).

The spelling of 1222421122 in words is "one billion, two hundred twenty-two million, four hundred twenty-one thousand, one hundred twenty-two".