20120120112002 has 8 divisors (see below), whose sum is σ = 30180414204300. Its totient is φ = 10059982043904.

The previous prime is 20120120111999. The next prime is 20120120112007. The reversal of 20120120112002 is 20021102102102.

It can be written as a sum of positive squares in 2 ways, for example, as 19735619665441 + 384500446561 = 4442479^2 + 620081^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20120120112007) 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 3 ways as a sum of consecutive naturals, for example, 38683127 + ... + 39199802.

Almost surely, 2^{20120120112002} is an apocalyptic number.

20120120112002 is a deficient number, since it is larger than the sum of its proper divisors (10060294092298).

20120120112002 is a wasteful number, since it uses less digits than its factorization.

20120120112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78012100.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20120120112002 its reverse (20021102102102), we get a palindrome (40141222214104).

The spelling of 20120120112002 in words is "twenty trillion, one hundred twenty billion, one hundred twenty million, one hundred twelve thousand, two".