1220213024 has 12 divisors (see below), whose sum is σ = 2402294454. Its totient is φ = 610106496.

The previous prime is 1220213009. The next prime is 1220213053. The reversal of 1220213024 is 4203120221.

It can be written as a sum of positive squares in only one way, i.e., 904084624 + 316128400 = 30068^2 + 17780^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1220212993 and 1220213011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19065797 + ... + 19065860.

Almost surely, 2^1220213024 is an apocalyptic number.

It is an amenable number.

1220213024 is a deficient number, since it is larger than the sum of its proper divisors (1182081430).

1220213024 is an equidigital number, since it uses as much as digits as its factorization.

1220213024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38131667 (or 38131659 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1220213024 is about 34931.5476897317. The cubic root of 1220213024 is about 1068.5919184631.

Adding to 1220213024 its reverse (4203120221), we get a palindrome (5423333245).

The spelling of 1220213024 in words is "one billion, two hundred twenty million, two hundred thirteen thousand, twenty-four".