1220012302 has 4 divisors (see below), whose sum is σ = 1830018456. Its totient is φ = 610006150.

The previous prime is 1220012291. The next prime is 1220012329. The reversal of 1220012302 is 2032100221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2032100221 = 5081 ⋅399941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305003074 + ... + 305003077.

It is an arithmetic number, because the mean of its divisors is an integer number (457504614).

Almost surely, 2^1220012302 is an apocalyptic number.

1220012302 is a deficient number, since it is larger than the sum of its proper divisors (610006154).

1220012302 is an equidigital number, since it uses as much as digits as its factorization.

1220012302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610006153.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1220012302 is about 34928.6744953197. The cubic root of 1220012302 is about 1068.5333216813.

Adding to 1220012302 its reverse (2032100221), we get a palindrome (3252112523).

The spelling of 1220012302 in words is "one billion, two hundred twenty million, twelve thousand, three hundred two".