1222041600 has 672 divisors, whose sum is σ = 5119359840. Its totient is φ = 283115520.

The previous prime is 1222041593. The next prime is 1222041631. The reversal of 1222041600 is 61402221.

1222041600 is a `hidden beast` number, since 1 + 2 + 2 + 20 + 41 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71884792 + ... + 71884808.

It is an arithmetic number, because the mean of its divisors is an integer number (7618095).

Almost surely, 2^1222041600 is an apocalyptic number.

1222041600 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 1222041600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2559679920).

1222041600 is an abundant number, since it is smaller than the sum of its proper divisors (3897318240).

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

1222041600 is a wasteful number, since it uses less digits than its factorization.

1222041600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1222041600 is about 34957.7115955836. The cubic root of 1222041600 is about 1069.1254390422.

Adding to 1222041600 its reverse (61402221), we get a palindrome (1283443821).

The spelling of 1222041600 in words is "one billion, two hundred twenty-two million, forty-one thousand, six hundred".