1100000212120 has 16 divisors (see below), whose sum is σ = 2475000477360. Its totient is φ = 440000084832.

The previous prime is 1100000212081. The next prime is 1100000212121. The reversal of 1100000212120 is 212120000011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1100000212097 and 1100000212106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100000212121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13750002612 + ... + 13750002691.

It is an arithmetic number, because the mean of its divisors is an integer number (154687529835).

Almost surely, 2^{1100000212120} is an apocalyptic number.

1100000212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100000212120 is an abundant number, since it is smaller than the sum of its proper divisors (1375000265240).

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

1100000212120 is a wasteful number, since it uses less digits than its factorization.

1100000212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27500005314 (or 27500005310 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1100000212120 its reverse (212120000011), we get a palindrome (1312120212131).

The spelling of 1100000212120 in words is "one trillion, one hundred billion, two hundred twelve thousand, one hundred twenty".