1000012222200 has 96 divisors (see below), whose sum is σ = 3119783646960. Its totient is φ = 264971366400.

The previous prime is 1000012222133. The next prime is 1000012222229. The reversal of 1000012222200 is 22222100001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5213721 + ... + 5402120.

Almost surely, 2^{1000012222200} is an apocalyptic number.

1000012222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000012222200 is an abundant number, since it is smaller than the sum of its proper divisors (2119771424760).

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

1000012222200 is a wasteful number, since it uses less digits than its factorization.

1000012222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10616017 (or 10616008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1000012222200 its reverse (22222100001), we get a palindrome (1022234322201).

The spelling of 1000012222200 in words is "one trillion, twelve million, two hundred twenty-two thousand, two hundred".