1224221210 has 16 divisors (see below), whose sum is σ = 2211389856. Its totient is φ = 487957008.

The previous prime is 1224221171. The next prime is 1224221293. The reversal of 1224221210 is 121224221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213464 + ... + 219123.

It is an arithmetic number, because the mean of its divisors is an integer number (138211866).

Almost surely, 2^1224221210 is an apocalyptic number.

1224221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1224221210 is a deficient number, since it is larger than the sum of its proper divisors (987168646).

1224221210 is a wasteful number, since it uses less digits than its factorization.

1224221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432877.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1224221210 is about 34988.8726597471. The cubic root of 1224221210 is about 1069.7606854084.

Adding to 1224221210 its reverse (121224221), we get a palindrome (1345445431).

The spelling of 1224221210 in words is "one billion, two hundred twenty-four million, two hundred twenty-one thousand, two hundred ten".