20130020032212 has 36 divisors (see below), whose sum is σ = 50962141126260. Its totient is φ = 6699731008512.

The previous prime is 20130020032211. The next prime is 20130020032223. The reversal of 20130020032212 is 21223002003102.

20130020032212 is a `hidden beast` number, since 2 + 0 + 130 + 0 + 200 + 322 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11800296744336 + 8329723287876 = 3435156^2 + 2886126^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20130020032212² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130020032211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428129037 + ... + 428176052.

It is an arithmetic number, because the mean of its divisors is an integer number (1415615031285).

Almost surely, 2^{20130020032212} is an apocalyptic number.

It is an amenable number.

20130020032212 is an abundant number, since it is smaller than the sum of its proper divisors (30832121094048).

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

20130020032212 is a wasteful number, since it uses less digits than its factorization.

20130020032212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856305752 (or 856305747 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20130020032212 its reverse (21223002003102), we get a palindrome (41353022035314).

The spelling of 20130020032212 in words is "twenty trillion, one hundred thirty billion, twenty million, thirty-two thousand, two hundred twelve".