1220022530 has 8 divisors (see below), whose sum is σ = 2196040572. Its totient is φ = 488009008.

The previous prime is 1220022523. The next prime is 1220022539. The reversal of 1220022530 is 352200221.

It can be written as a sum of positive squares in 2 ways, for example, as 1213616569 + 6405961 = 34837^2 + 2531^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1220022499 and 1220022508.

It is not an unprimeable number, because it can be changed into a prime (1220022539) 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, 61001117 + ... + 61001136.

Almost surely, 2^1220022530 is an apocalyptic number.

1220022530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220022530 is a deficient number, since it is larger than the sum of its proper divisors (976018042).

1220022530 is a wasteful number, since it uses less digits than its factorization.

1220022530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122002260.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1220022530 is about 34928.8209076688. The cubic root of 1220022530 is about 1068.5363076971.

Adding to 1220022530 its reverse (352200221), we get a palindrome (1572222751).

The spelling of 1220022530 in words is "one billion, two hundred twenty million, twenty-two thousand, five hundred thirty".