1222120222210 has 32 divisors (see below), whose sum is σ = 2228004889200. Its totient is φ = 482601123840.

The previous prime is 1222120222199. The next prime is 1222120222261. The reversal of 1222120222210 is 122220212221.

It can be written as a sum of positive squares in 8 ways, for example, as 321714705601 + 900405516609 = 567199^2 + 948897^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500625 + ... + 1641604.

Almost surely, 2^{1222120222210} is an apocalyptic number.

1222120222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222120222210 is a deficient number, since it is larger than the sum of its proper divisors (1005884666990).

1222120222210 is a wasteful number, since it uses less digits than its factorization.

1222120222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142966.

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

Adding to 1222120222210 its reverse (122220212221), we get a palindrome (1344340434431).

The spelling of 1222120222210 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, two hundred ten".