212666103151 has 4 divisors (see below), whose sum is σ = 212667026704. Its totient is φ = 212665179600.

The previous prime is 212666103137. The next prime is 212666103179. The reversal of 212666103151 is 151301666212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 212666103151 - 2¹¹ = 212666101103 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 (212666103451) 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, 195046 + ... + 680716.

It is an arithmetic number, because the mean of its divisors is an integer number (53166756676).

Almost surely, 2^212666103151 is an apocalyptic number.

212666103151 is a deficient number, since it is larger than the sum of its proper divisors (923553).

212666103151 is an equidigital number, since it uses as much as digits as its factorization.

212666103151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923552.

The product of its (nonzero) digits is 12960, while the sum is 34.

Adding to 212666103151 its reverse (151301666212), we get a palindrome (363967769363).

The spelling of 212666103151 in words is "two hundred twelve billion, six hundred sixty-six million, one hundred three thousand, one hundred fifty-one".