212000551 has 4 divisors (see below), whose sum is σ = 242286352. Its totient is φ = 181714752.

The previous prime is 212000539. The next prime is 212000567. The reversal of 212000551 is 155000212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212000551 - 2¹¹ = 211998503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212000501) 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, 15142890 + ... + 15142903.

It is an arithmetic number, because the mean of its divisors is an integer number (60571588).

Almost surely, 2^212000551 is an apocalyptic number.

212000551 is a deficient number, since it is larger than the sum of its proper divisors (30285801).

212000551 is an equidigital number, since it uses as much as digits as its factorization.

212000551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30285800.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 212000551 is about 14560.2386999664. The cubic root of 212000551 is about 596.2737123565.

Adding to 212000551 its reverse (155000212), we get a palindrome (367000763).

The spelling of 212000551 in words is "two hundred twelve million, five hundred fifty-one", and thus it is an aban number.