1122002100120 has 128 divisors (see below), whose sum is σ = 3709863037440. Its totient is φ = 269196349440.

The previous prime is 1122002100101. The next prime is 1122002100133. The reversal of 1122002100120 is 210012002211.

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

It is a junction number, because it is equal to n+sod(n) for n = 1122002100096 and 1122002100105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4253412 + ... + 4509491.

It is an arithmetic number, because the mean of its divisors is an integer number (28983304980).

Almost surely, 2^{1122002100120} is an apocalyptic number.

1122002100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122002100120 is an abundant number, since it is smaller than the sum of its proper divisors (2587860937320).

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

1122002100120 is a wasteful number, since it uses less digits than its factorization.

1122002100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8763025 (or 8763021 counting only the distinct ones).

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

Adding to 1122002100120 its reverse (210012002211), we get a palindrome (1332014102331).

The spelling of 1122002100120 in words is "one trillion, one hundred twenty-two billion, two million, one hundred thousand, one hundred twenty".