1220212212202 has 8 divisors (see below), whose sum is σ = 1830347431812. Its totient is φ = 610096401600.

The previous prime is 1220212212187. The next prime is 1220212212281. The reversal of 1220212212202 is 2022122120221.

It can be written as a sum of positive squares in 2 ways, for example, as 1176381021321 + 43831190881 = 1084611^2 + 209359^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1220212212202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4694049 + ... + 4947172.

Almost surely, 2^{1220212212202} is an apocalyptic number.

1220212212202 is a deficient number, since it is larger than the sum of its proper divisors (610135219610).

1220212212202 is an equidigital number, since it uses as much as digits as its factorization.

1220212212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9704504.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1220212212202 its reverse (2022122120221), we get a palindrome (3242334332423).

The spelling of 1220212212202 in words is "one trillion, two hundred twenty billion, two hundred twelve million, two hundred twelve thousand, two hundred two".