1100122022100 has 72 divisors (see below), whose sum is σ = 3183754053088. Its totient is φ = 293298192000.

The previous prime is 1100122022099. The next prime is 1100122022101. The reversal of 1100122022100 is 12202210011.

It is an interprime number because it is at equal distance from previous prime (1100122022099) and next prime (1100122022101).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100122022101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 886275 + ... + 1727925.

Almost surely, 2^{1100122022100} is an apocalyptic number.

1100122022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100122022100 is an abundant number, since it is smaller than the sum of its proper divisors (2083632030988).

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

1100122022100 is a wasteful number, since it uses less digits than its factorization.

1100122022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846025 (or 846018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1100122022100 its reverse (12202210011), we get a palindrome (1112324232111).

The spelling of 1100122022100 in words is "one trillion, one hundred billion, one hundred twenty-two million, twenty-two thousand, one hundred".