2012211130021 has 8 divisors (see below), whose sum is σ = 2031190638840. Its totient is φ = 1993241055168.

The previous prime is 2012211129997. The next prime is 2012211130079. The reversal of 2012211130021 is 1200311122102.

It can be written as a sum of positive squares in 4 ways, for example, as 537419481921 + 1474791648100 = 733089^2 + 1214410^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2012211130021 - 2⁵ = 2012211129989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012211129977 and 2012211130004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012211130091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1929526 + ... + 2783431.

It is an arithmetic number, because the mean of its divisors is an integer number (253898829855).

Almost surely, 2^{2012211130021} is an apocalyptic number.

It is an amenable number.

2012211130021 is a deficient number, since it is larger than the sum of its proper divisors (18979508819).

2012211130021 is a wasteful number, since it uses less digits than its factorization.

2012211130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4716983.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2012211130021 its reverse (1200311122102), we get a palindrome (3212522252123).

The spelling of 2012211130021 in words is "two trillion, twelve billion, two hundred eleven million, one hundred thirty thousand, twenty-one".