1000222312200 has 192 divisors, whose sum is σ = 3329325659520. Its totient is φ = 247500288000.

The previous prime is 1000222312169. The next prime is 1000222312223. The reversal of 1000222312200 is 22132220001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1000222312200.

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, 33630 + ... + 1414770.

It is an arithmetic number, because the mean of its divisors is an integer number (17340237810).

Almost surely, 2^{1000222312200} is an apocalyptic number.

1000222312200 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 1000222312200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1664662829760).

1000222312200 is an abundant number, since it is smaller than the sum of its proper divisors (2329103347320).

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

1000222312200 is a wasteful number, since it uses less digits than its factorization.

1000222312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381248 (or 1381239 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1000222312200 its reverse (22132220001), we get a palindrome (1022354532201).

The spelling of 1000222312200 in words is "one trillion, two hundred twenty-two million, three hundred twelve thousand, two hundred".