1212101220322 has 8 divisors (see below), whose sum is σ = 1818157356972. Its totient is φ = 606048768000.

The previous prime is 1212101220307. The next prime is 1212101220347. The reversal of 1212101220322 is 2230221012121.

It can be written as a sum of positive squares in 2 ways, for example, as 1037018392281 + 175082828041 = 1018341^2 + 418429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1212101220322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150922 + ... + 1564282.

Almost surely, 2^{1212101220322} is an apocalyptic number.

1212101220322 is a deficient number, since it is larger than the sum of its proper divisors (606056136650).

1212101220322 is a wasteful number, since it uses less digits than its factorization.

1212101220322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842164.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1212101220322 its reverse (2230221012121), we get a palindrome (3442322232443).

The spelling of 1212101220322 in words is "one trillion, two hundred twelve billion, one hundred one million, two hundred twenty thousand, three hundred twenty-two".