1222112300 has 36 divisors (see below), whose sum is σ = 2791566120. Its totient is φ = 463115520.

The previous prime is 1222112299. The next prime is 1222112317. The reversal of 1222112300 is 32112221.

It is a happy number.

It is a super-2 number, since 2×1222112300² = 2987116947622580000, which contains 22 as substring.

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, 319709 + ... + 323508.

Almost surely, 2^1222112300 is an apocalyptic number.

1222112300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222112300 is an abundant number, since it is smaller than the sum of its proper divisors (1569453820).

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

1222112300 is a wasteful number, since it uses less digits than its factorization.

1222112300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643250 (or 643243 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1222112300 is about 34958.7228027570. The cubic root of 1222112300 is about 1069.1460563739.

Adding to 1222112300 its reverse (32112221), we get a palindrome (1254224521).

The spelling of 1222112300 in words is "one billion, two hundred twenty-two million, one hundred twelve thousand, three hundred".