1220201210 has 16 divisors (see below), whose sum is σ = 2202698016. Its totient is φ = 486672528.

The previous prime is 1220201189. The next prime is 1220201249. The reversal of 1220201210 is 121020221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220201191 and 1220201200.

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 7 ways as a sum of consecutive naturals, for example, 172352 + ... + 179291.

It is an arithmetic number, because the mean of its divisors is an integer number (137668626).

Almost surely, 2^1220201210 is an apocalyptic number.

1220201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220201210 is a deficient number, since it is larger than the sum of its proper divisors (982496806).

1220201210 is a wasteful number, since it uses less digits than its factorization.

1220201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351997.

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

The square root of 1220201210 is about 34931.3785871672. The cubic root of 1220201210 is about 1068.5884697796.

Adding to 1220201210 its reverse (121020221), we get a palindrome (1341221431).

The spelling of 1220201210 in words is "one billion, two hundred twenty million, two hundred one thousand, two hundred ten".