212250453430 has 64 divisors (see below), whose sum is σ = 412459350912. Its totient is φ = 78346967040.

The previous prime is 212250453353. The next prime is 212250453431. The reversal of 212250453430 is 34354052212.

It is a junction number, because it is equal to n+sod(n) for n = 212250453392 and 212250453401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212250453431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3255007 + ... + 3319573.

It is an arithmetic number, because the mean of its divisors is an integer number (6444677358).

Almost surely, 2^212250453430 is an apocalyptic number.

212250453430 is a deficient number, since it is larger than the sum of its proper divisors (200208897482).

212250453430 is a wasteful number, since it uses less digits than its factorization.

212250453430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64969.

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 212250453430 in words is "two hundred twelve billion, two hundred fifty million, four hundred fifty-three thousand, four hundred thirty".