1222143321120 has 48 divisors (see below), whose sum is σ = 3849751463040. Its totient is φ = 325904885504.

The previous prime is 1222143321107. The next prime is 1222143321121. The reversal of 1222143321120 is 211233412221.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1222143321121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273065480 + ... + 1273066439.

It is an arithmetic number, because the mean of its divisors is an integer number (80203155480).

Almost surely, 2^{1222143321120} is an apocalyptic number.

1222143321120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222143321120 is an abundant number, since it is smaller than the sum of its proper divisors (2627608141920).

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

1222143321120 is a wasteful number, since it uses less digits than its factorization.

1222143321120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546131937 (or 2546131929 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1222143321120 its reverse (211233412221), we get a palindrome (1433376733341).

The spelling of 1222143321120 in words is "one trillion, two hundred twenty-two billion, one hundred forty-three million, three hundred twenty-one thousand, one hundred twenty".