1022222232200 has 96 divisors (see below), whose sum is σ = 2584829325960. Its totient is φ = 373698816000.

The previous prime is 1022222232179. The next prime is 1022222232203. The reversal of 1022222232200 is 22322222201.

It can be written as a sum of positive squares in 12 ways, for example, as 174839387044 + 847382845156 = 418138^2 + 920534^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1022222232203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1683749 + ... + 2208948.

Almost surely, 2^{1022222232200} is an apocalyptic number.

1022222232200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022222232200 is an abundant number, since it is smaller than the sum of its proper divisors (1562607093760).

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

1022222232200 is a wasteful number, since it uses less digits than its factorization.

1022222232200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892827 (or 3892818 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 1022222232200 its reverse (22322222201), we get a palindrome (1044544454401).

Subtracting from 1022222232200 its reverse (22322222201), we obtain a palindrome (999900009999).

The spelling of 1022222232200 in words is "one trillion, twenty-two billion, two hundred twenty-two million, two hundred thirty-two thousand, two hundred".