212013231197 has 8 divisors (see below), whose sum is σ = 224598411576. Its totient is φ = 199440696832.

The previous prime is 212013231187. The next prime is 212013231229. The reversal of 212013231197 is 791132310212.

It can be written as a sum of positive squares in 4 ways, for example, as 246678436 + 211766552761 = 15706^2 + 460181^2 .

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

It is not a de Polignac number, because 212013231197 - 2¹⁸ = 212012969053 is a prime.

It is a super-2 number, since 2×212013231197² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013231127) 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, 3126968 + ... + 3194049.

It is an arithmetic number, because the mean of its divisors is an integer number (28074801447).

Almost surely, 2^212013231197 is an apocalyptic number.

It is an amenable number.

212013231197 is a deficient number, since it is larger than the sum of its proper divisors (12585180379).

212013231197 is a wasteful number, since it uses less digits than its factorization.

212013231197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6323007.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 212013231197 in words is "two hundred twelve billion, thirteen million, two hundred thirty-one thousand, one hundred ninety-seven".