1220012210 has 8 divisors (see below), whose sum is σ = 2196021996. Its totient is φ = 488004880.

The previous prime is 1220012203. The next prime is 1220012221. The reversal of 1220012210 is 122100221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1177931041 + 42081169 = 34321^2 + 6487^2 .

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

1220012210 is a modest number, since divided by 12210 gives 1220 as remainder.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1220012191 and 1220012200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61000601 + ... + 61000620.

Almost surely, 2^1220012210 is an apocalyptic number.

1220012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220012210 is a deficient number, since it is larger than the sum of its proper divisors (976009786).

1220012210 is a wasteful number, since it uses less digits than its factorization.

1220012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122001228.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1220012210 is about 34928.6731783502. The cubic root of 1220012210 is about 1068.5332948222.

Adding to 1220012210 its reverse (122100221), we get a palindrome (1342112431).

The spelling of 1220012210 in words is "one billion, two hundred twenty million, twelve thousand, two hundred ten".