1203312312222 has 64 divisors (see below), whose sum is σ = 2435060232000. Its totient is φ = 396400435200.

The previous prime is 1203312312157. The next prime is 1203312312239. The reversal of 1203312312222 is 2222132133021.

It is a junction number, because it is equal to n+sod(n) for n = 1203312312192 and 1203312312201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121529472 + ... + 121539372.

It is an arithmetic number, because the mean of its divisors is an integer number (38047816125).

Almost surely, 2^{1203312312222} is an apocalyptic number.

1203312312222 is an abundant number, since it is smaller than the sum of its proper divisors (1231747919778).

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

1203312312222 is a wasteful number, since it uses less digits than its factorization.

1203312312222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10781.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1203312312222 its reverse (2222132133021), we get a palindrome (3425444445243).

The spelling of 1203312312222 in words is "one trillion, two hundred three billion, three hundred twelve million, three hundred twelve thousand, two hundred twenty-two".