212213415151 has 4 divisors (see below), whose sum is σ = 212214474472. Its totient is φ = 212212355832.

The previous prime is 212213415149. The next prime is 212213415203. The reversal of 212213415151 is 151514312212.

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 212213415151 - 2¹ = 212213415149 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 (212213415131) 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, 127260 + ... + 663793.

It is an arithmetic number, because the mean of its divisors is an integer number (53053618618).

Almost surely, 2^212213415151 is an apocalyptic number.

212213415151 is a deficient number, since it is larger than the sum of its proper divisors (1059321).

212213415151 is an equidigital number, since it uses as much as digits as its factorization.

212213415151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059320.

The product of its digits is 2400, while the sum is 28.

Adding to 212213415151 its reverse (151514312212), we get a palindrome (363727727363).

The spelling of 212213415151 in words is "two hundred twelve billion, two hundred thirteen million, four hundred fifteen thousand, one hundred fifty-one".