1220221202 has 8 divisors (see below), whose sum is σ = 1853500800. Its totient is φ = 602387604.

The previous prime is 1220221201. The next prime is 1220221217. The reversal of 1220221202 is 2021220221.

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

It is not an unprimeable number, because it can be changed into a prime (1220221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3861302 + ... + 3861617.

It is an arithmetic number, because the mean of its divisors is an integer number (231687600).

Almost surely, 2^1220221202 is an apocalyptic number.

1220221202 is a deficient number, since it is larger than the sum of its proper divisors (633279598).

1220221202 is an equidigital number, since it uses as much as digits as its factorization.

1220221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723000.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1220221202 is about 34931.6647470458. The cubic root of 1220221202 is about 1068.5943057308.

Adding to 1220221202 its reverse (2021220221), we get a palindrome (3241441423).

It can be divided in two parts, 1220221 and 202, that multiplied together give a palindrome (246484642).

The spelling of 1220221202 in words is "one billion, two hundred twenty million, two hundred twenty-one thousand, two hundred two".