212420452150 has 24 divisors (see below), whose sum is σ = 407847271104. Its totient is φ = 82227271200.

The previous prime is 212420452147. The next prime is 212420452151. The reversal of 212420452150 is 51254024212.

It is a happy number.

It is a super-2 number, since 2×212420452150² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212420452151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68521177 + ... + 68524276.

It is an arithmetic number, because the mean of its divisors is an integer number (16993636296).

Almost surely, 2^212420452150 is an apocalyptic number.

212420452150 is a deficient number, since it is larger than the sum of its proper divisors (195426818954).

212420452150 is a wasteful number, since it uses less digits than its factorization.

212420452150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137045496 (or 137045491 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 212420452150 its reverse (51254024212), we get a palindrome (263674476362).

The spelling of 212420452150 in words is "two hundred twelve billion, four hundred twenty million, four hundred fifty-two thousand, one hundred fifty".