212743225573 has 4 divisors (see below), whose sum is σ = 212756446528. Its totient is φ = 212730004620.

The previous prime is 212743225571. The next prime is 212743225609. The reversal of 212743225573 is 375522347212.

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 212743225573 - 2¹ = 212743225571 is a prime.

It is a super-2 number, since 2×212743225573² (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 (212743225571) 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, 6586311 + ... + 6618532.

It is an arithmetic number, because the mean of its divisors is an integer number (53189111632).

Almost surely, 2^212743225573 is an apocalyptic number.

It is an amenable number.

212743225573 is a deficient number, since it is larger than the sum of its proper divisors (13220955).

212743225573 is a wasteful number, since it uses less digits than its factorization.

212743225573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13220954.

The product of its digits is 705600, while the sum is 43.

The spelling of 212743225573 in words is "two hundred twelve billion, seven hundred forty-three million, two hundred twenty-five thousand, five hundred seventy-three".