213202213197 has 4 divisors (see below), whose sum is σ = 284269617600. Its totient is φ = 142134808796.

The previous prime is 213202213177. The next prime is 213202213201. The reversal of 213202213197 is 791312202312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213202213197 - 2²² = 213198018893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213202213117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35533702197 + ... + 35533702202.

It is an arithmetic number, because the mean of its divisors is an integer number (71067404400).

Almost surely, 2^213202213197 is an apocalyptic number.

It is an amenable number.

213202213197 is a deficient number, since it is larger than the sum of its proper divisors (71067404403).

213202213197 is an equidigital number, since it uses as much as digits as its factorization.

213202213197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71067404402.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 213202213197 in words is "two hundred thirteen billion, two hundred two million, two hundred thirteen thousand, one hundred ninety-seven".