1222727516 has 24 divisors (see below), whose sum is σ = 2296687680. Its totient is φ = 567516672.

The previous prime is 1222727507. The next prime is 1222727521. The reversal of 1222727516 is 6157272221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118196 + ... + 128123.

It is an arithmetic number, because the mean of its divisors is an integer number (95695320).

Almost surely, 2^1222727516 is an apocalyptic number.

It is an amenable number.

1222727516 is a deficient number, since it is larger than the sum of its proper divisors (1073960164).

1222727516 is a wasteful number, since it uses less digits than its factorization.

1222727516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246413 (or 246411 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 1222727516 is about 34967.5208729472. The cubic root of 1222727516 is about 1069.3254303476.

Adding to 1222727516 its reverse (6157272221), we get a palindrome (7379999737).

The spelling of 1222727516 in words is "one billion, two hundred twenty-two million, seven hundred twenty-seven thousand, five hundred sixteen".