1000022112200 has 48 divisors (see below), whose sum is σ = 2340655852500. Its totient is φ = 397324209920.

The previous prime is 1000022112197. The next prime is 1000022112211. The reversal of 1000022112200 is 22112200001.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 423251734084 + 576770378116 = 650578^2 + 759454^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16749095 + ... + 16808694.

Almost surely, 2^{1000022112200} is an apocalyptic number.

1000022112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000022112200 is an abundant number, since it is smaller than the sum of its proper divisors (1340633740300).

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

1000022112200 is a wasteful number, since it uses less digits than its factorization.

1000022112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33557954 (or 33557945 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1000022112200 its reverse (22112200001), we get a palindrome (1022134312201).

The spelling of 1000022112200 in words is "one trillion, twenty-two million, one hundred twelve thousand, two hundred".