1220113522 has 32 divisors (see below), whose sum is σ = 1932491520. Its totient is φ = 576628800.

The previous prime is 1220113501. The next prime is 1220113537. The reversal of 1220113522 is 2253110221.

It is a super-3 number, since 3×1220113522³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220113522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1868148 + ... + 1868800.

It is an arithmetic number, because the mean of its divisors is an integer number (60390360).

Almost surely, 2^1220113522 is an apocalyptic number.

1220113522 is a deficient number, since it is larger than the sum of its proper divisors (712377998).

1220113522 is a wasteful number, since it uses less digits than its factorization.

1220113522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1220113522 is about 34930.1234180471. The cubic root of 1220113522 is about 1068.5628716434.

Adding to 1220113522 its reverse (2253110221), we get a palindrome (3473223743).

The spelling of 1220113522 in words is "one billion, two hundred twenty million, one hundred thirteen thousand, five hundred twenty-two".