1222475089920 has 384 divisors, whose sum is σ = 4613882757120. Its totient is φ = 270407761920.

The previous prime is 1222475089897. The next prime is 1222475089921. The reversal of 1222475089920 is 299805742221.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (1222475089921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6574549 + ... + 6757931.

It is an arithmetic number, because the mean of its divisors is an integer number (12015319680).

Almost surely, 2^{1222475089920} is an apocalyptic number.

1222475089920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222475089920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2306941378560).

1222475089920 is an abundant number, since it is smaller than the sum of its proper divisors (3391407667200).

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

1222475089920 is a wasteful number, since it uses less digits than its factorization.

1222475089920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183451 (or 183431 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 1222475089920 in words is "one trillion, two hundred twenty-two billion, four hundred seventy-five million, eighty-nine thousand, nine hundred twenty".