1222202485800 has 288 divisors, whose sum is σ = 4158437470200. Its totient is φ = 321656586240.

The previous prime is 1222202485793. The next prime is 1222202485879. The reversal of 1222202485800 is 85842022221.

It is a happy number.

1222202485800 is a `hidden beast` number, since 12 + 2 + 2 + 20 + 2 + 48 + 580 + 0 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 252162656964 + 970039828836 = 502158^2 + 984906^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 89224552 + ... + 89238248.

Almost surely, 2^{1222202485800} is an apocalyptic number.

1222202485800 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 1222202485800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2079218735100).

1222202485800 is an abundant number, since it is smaller than the sum of its proper divisors (2936234984400).

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

1222202485800 is a wasteful number, since it uses less digits than its factorization.

1222202485800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14365 (or 14353 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The spelling of 1222202485800 in words is "one trillion, two hundred twenty-two billion, two hundred two million, four hundred eighty-five thousand, eight hundred".