1241221222 has 4 divisors (see below), whose sum is σ = 1861831836. Its totient is φ = 620610610.

The previous prime is 1241221193. The next prime is 1241221231. The reversal of 1241221222 is 2221221421.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1241221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310305304 + ... + 310305307.

It is an arithmetic number, because the mean of its divisors is an integer number (465457959).

Almost surely, 2^1241221222 is an apocalyptic number.

1241221222 is a deficient number, since it is larger than the sum of its proper divisors (620610614).

1241221222 is an equidigital number, since it uses as much as digits as its factorization.

1241221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620610613.

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

The square root of 1241221222 is about 35230.9696431989. The cubic root of 1241221222 is about 1074.6896445347.

Adding to 1241221222 its reverse (2221221421), we get a palindrome (3462442643).

The spelling of 1241221222 in words is "one billion, two hundred forty-one million, two hundred twenty-one thousand, two hundred twenty-two".