120001220010013 has 4 divisors (see below), whose sum is σ = 120001245070140. Its totient is φ = 120001194949888.

The previous prime is 120001220009999. The next prime is 120001220010037. The reversal of 120001220010013 is 310010022100021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95071041191844 + 24930178818169 = 9750438^2 + 4993013^2 .

It is a cyclic number.

It is not a de Polignac number, because 120001220010013 - 2²¹ = 120001217912861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120001220009975 and 120001220010002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001220010313) 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, 2859268 + ... + 15753661.

It is an arithmetic number, because the mean of its divisors is an integer number (30000311267535).

Almost surely, 2^{120001220010013} is an apocalyptic number.

It is an amenable number.

120001220010013 is a deficient number, since it is larger than the sum of its proper divisors (25060127).

120001220010013 is an equidigital number, since it uses as much as digits as its factorization.

120001220010013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25060126.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 120001220010013 its reverse (310010022100021), we get a palindrome (430011242110034).

The spelling of 120001220010013 in words is "one hundred twenty trillion, one billion, two hundred twenty million, ten thousand, thirteen".