10001222220120 has 64 divisors (see below), whose sum is σ = 30569773597920. Its totient is φ = 2616671975424.

The previous prime is 10001222220091. The next prime is 10001222220163. The reversal of 10001222220120 is 2102222210001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10001222220120.

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 15 ways as a sum of consecutive naturals, for example, 786253249 + ... + 786265968.

Almost surely, 2^{10001222220120} is an apocalyptic number.

10001222220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001222220120 is an abundant number, since it is smaller than the sum of its proper divisors (20568551377800).

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

10001222220120 is a wasteful number, since it uses less digits than its factorization.

10001222220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572519284 (or 1572519280 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10001222220120 its reverse (2102222210001), we get a palindrome (12103444430121).

The spelling of 10001222220120 in words is "ten trillion, one billion, two hundred twenty-two million, two hundred twenty thousand, one hundred twenty".