1221303013222 has 8 divisors (see below), whose sum is σ = 1832571556200. Its totient is φ = 610445827824.

The previous prime is 1221303013213. The next prime is 1221303013241. The reversal of 1221303013222 is 2223103031221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1221303013193 and 1221303013202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102831972 + ... + 102843847.

It is an arithmetic number, because the mean of its divisors is an integer number (229071444525).

Almost surely, 2^{1221303013222} is an apocalyptic number.

1221303013222 is a deficient number, since it is larger than the sum of its proper divisors (611268542978).

1221303013222 is a wasteful number, since it uses less digits than its factorization.

1221303013222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205678790.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1221303013222 its reverse (2223103031221), we get a palindrome (3444406044443).

The spelling of 1221303013222 in words is "one trillion, two hundred twenty-one billion, three hundred three million, thirteen thousand, two hundred twenty-two".