2012211197 has 8 divisors (see below), whose sum is σ = 2120874840. Its totient is φ = 1906166080.

The previous prime is 2012211181. The next prime is 2012211203. The reversal of 2012211197 is 7911122102.

It can be written as a sum of positive squares in 4 ways, for example, as 449906521 + 1562304676 = 21211^2 + 39526^2 .

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 2012211197 - 2⁴ = 2012211181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012211127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653054 + ... + 656127.

It is an arithmetic number, because the mean of its divisors is an integer number (265109355).

Almost surely, 2^2012211197 is an apocalyptic number.

It is an amenable number.

2012211197 is a deficient number, since it is larger than the sum of its proper divisors (108663643).

2012211197 is a wasteful number, since it uses less digits than its factorization.

2012211197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309263.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 2012211197 is about 44857.6771244343. The cubic root of 2012211197 is about 1262.4800395759.

Adding to 2012211197 its reverse (7911122102), we get a palindrome (9923333299).

The spelling of 2012211197 in words is "two billion, twelve million, two hundred eleven thousand, one hundred ninety-seven".