212251023452 has 12 divisors (see below), whose sum is σ = 400011544296. Its totient is φ = 97962010800.

The previous prime is 212251023449. The next prime is 212251023499. The reversal of 212251023452 is 254320152212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2040875174 + ... + 2040875277.

It is an arithmetic number, because the mean of its divisors is an integer number (33334295358).

Almost surely, 2^212251023452 is an apocalyptic number.

It is an amenable number.

212251023452 is a deficient number, since it is larger than the sum of its proper divisors (187760520844).

212251023452 is a wasteful number, since it uses less digits than its factorization.

212251023452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081750468 (or 4081750466 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 212251023452 its reverse (254320152212), we get a palindrome (466571175664).

The spelling of 212251023452 in words is "two hundred twelve billion, two hundred fifty-one million, twenty-three thousand, four hundred fifty-two".