1221433200222 has 64 divisors (see below), whose sum is σ = 2574886302720. Its totient is φ = 385501248000.

The previous prime is 1221433200217. The next prime is 1221433200259. The reversal of 1221433200222 is 2220023341221.

It is a junction number, because it is equal to n+sod(n) for n = 1221433200192 and 1221433200201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99776022 + ... + 99788262.

It is an arithmetic number, because the mean of its divisors is an integer number (40232598480).

Almost surely, 2^{1221433200222} is an apocalyptic number.

1221433200222 is an abundant number, since it is smaller than the sum of its proper divisors (1353453102498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1221433200222 is a wasteful number, since it uses less digits than its factorization.

1221433200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19529.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1221433200222 its reverse (2220023341221), we get a palindrome (3441456541443).

The spelling of 1221433200222 in words is "one trillion, two hundred twenty-one billion, four hundred thirty-three million, two hundred thousand, two hundred twenty-two".