20000133130212 has 18 divisors (see below), whose sum is σ = 50555892079238. Its totient is φ = 6666711043392.

The previous prime is 20000133130177. The next prime is 20000133130231. The reversal of 20000133130212 is 21203133100002.

20000133130212 is a `hidden beast` number, since 20 + 0 + 0 + 0 + 1 + 331 + 302 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19615899272256 + 384233857956 = 4428984^2 + 619866^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277779626773 + ... + 277779626844.

Almost surely, 2^{20000133130212} is an apocalyptic number.

It is an amenable number.

20000133130212 is an abundant number, since it is smaller than the sum of its proper divisors (30555758949026).

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

20000133130212 is a wasteful number, since it uses less digits than its factorization.

20000133130212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555559253627 (or 555559253622 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20000133130212 its reverse (21203133100002), we get a palindrome (41203266230214).

It can be divided in two parts, 2000013 and 3130212, that added together give a square (5130225 = 2265²).

The spelling of 20000133130212 in words is "twenty trillion, one hundred thirty-three million, one hundred thirty thousand, two hundred twelve".