1222221464 has 16 divisors (see below), whose sum is σ = 2340424800. Its totient is φ = 598108192.

The previous prime is 1222221461. The next prime is 1222221467. The reversal of 1222221464 is 4641222221.

It is an interprime number because it is at equal distance from previous prime (1222221461) and next prime (1222221467).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222221461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1624919 + ... + 1625670.

It is an arithmetic number, because the mean of its divisors is an integer number (146276550).

Almost surely, 2^1222221464 is an apocalyptic number.

It is an amenable number.

1222221464 is a deficient number, since it is larger than the sum of its proper divisors (1118203336).

1222221464 is a wasteful number, since it uses less digits than its factorization.

1222221464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250642 (or 3250638 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 1222221464 is about 34960.2840949555. The cubic root of 1222221464 is about 1069.1778889055.

Adding to 1222221464 its reverse (4641222221), we get a palindrome (5863443685).

The spelling of 1222221464 in words is "one billion, two hundred twenty-two million, two hundred twenty-one thousand, four hundred sixty-four".