1222001210 has 16 divisors (see below), whose sum is σ = 2219069736. Its totient is φ = 484474368.

The previous prime is 1222001203. The next prime is 1222001233. The reversal of 1222001210 is 121002221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 728406121 + 493595089 = 26989^2 + 22217^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1222001191 and 1222001200.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 539579 + ... + 541838.

Almost surely, 2^1222001210 is an apocalyptic number.

1222001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222001210 is a deficient number, since it is larger than the sum of its proper divisors (997068526).

1222001210 is a wasteful number, since it uses less digits than its factorization.

1222001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081537.

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

The square root of 1222001210 is about 34957.1338928122. The cubic root of 1222001210 is about 1069.1136602691.

Adding to 1222001210 its reverse (121002221), we get a palindrome (1343003431).

The spelling of 1222001210 in words is "one billion, two hundred twenty-two million, one thousand, two hundred ten".