1000001210120 has 32 divisors (see below), whose sum is σ = 2454548425920. Its totient is φ = 363636803520.

The previous prime is 1000001210119. The next prime is 1000001210129. The reversal of 1000001210120 is 210121000001.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 1000001210098 and 1000001210107.

It is not an unprimeable number, because it can be changed into a prime (1000001210129) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1136364572 + ... + 1136365451.

It is an arithmetic number, because the mean of its divisors is an integer number (76704638310).

Almost surely, 2^{1000001210120} is an apocalyptic number.

1000001210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000001210120 is an abundant number, since it is smaller than the sum of its proper divisors (1454547215800).

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

1000001210120 is a wasteful number, since it uses less digits than its factorization.

1000001210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272730045 (or 2272730041 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1000001210120 its reverse (210121000001), we get a palindrome (1210122210121).

It can be divided in two parts, 1000001 and 210120, that added together give a palindrome (1210121).

The spelling of 1000001210120 in words is "one trillion, one million, two hundred ten thousand, one hundred twenty".