1222312020204 has 96 divisors (see below), whose sum is σ = 3134043424512. Its totient is φ = 367701984000.

The previous prime is 1222312020157. The next prime is 1222312020227. The reversal of 1222312020204 is 4020202132221.

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, 13597534 + ... + 13687130.

It is an arithmetic number, because the mean of its divisors is an integer number (32646285672).

Almost surely, 2^{1222312020204} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222312020204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1567021712256).

1222312020204 is an abundant number, since it is smaller than the sum of its proper divisors (1911731404308).

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

1222312020204 is a wasteful number, since it uses less digits than its factorization.

1222312020204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90367 (or 90365 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1222312020204 its reverse (4020202132221), we get a palindrome (5242514152425).

The spelling of 1222312020204 in words is "one trillion, two hundred twenty-two billion, three hundred twelve million, twenty thousand, two hundred four".