1220030302 has 4 divisors (see below), whose sum is σ = 1830045456. Its totient is φ = 610015150.

The previous prime is 1220030281. The next prime is 1220030303. The reversal of 1220030302 is 2030300221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1220030302² = 2976947875596422408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220030303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305007574 + ... + 305007577.

It is an arithmetic number, because the mean of its divisors is an integer number (457511364).

Almost surely, 2^1220030302 is an apocalyptic number.

1220030302 is a deficient number, since it is larger than the sum of its proper divisors (610015154).

1220030302 is an equidigital number, since it uses as much as digits as its factorization.

1220030302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610015153.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1220030302 is about 34928.9321623207. The cubic root of 1220030302 is about 1068.5385766843.

Adding to 1220030302 its reverse (2030300221), we get a palindrome (3250330523).

The spelling of 1220030302 in words is "one billion, two hundred twenty million, thirty thousand, three hundred two".