1112123220100 has 36 divisors (see below), whose sum is σ = 2469430824784. Its totient is φ = 434503954080.

The previous prime is 1112123220053. The next prime is 1112123220101. The reversal of 1112123220100 is 10223212111.

It is a super-4 number, since 4×1112123220100⁴ (a number of 49 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1112123220101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129312354 + ... + 129320953.

Almost surely, 2^{1112123220100} is an apocalyptic number.

1112123220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112123220100 is an abundant number, since it is smaller than the sum of its proper divisors (1357307604684).

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

1112123220100 is a wasteful number, since it uses less digits than its factorization.

1112123220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258633364 (or 258633357 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1112123220100 its reverse (10223212111), we get a palindrome (1122346432211).

The spelling of 1112123220100 in words is "one trillion, one hundred twelve billion, one hundred twenty-three million, two hundred twenty thousand, one hundred".