212203630 has 16 divisors (see below), whose sum is σ = 382546224. Its totient is φ = 84752640.

The previous prime is 212203603. The next prime is 212203631. The reversal of 212203630 is 36302212.

It is a junction number, because it is equal to n+sod(n) for n = 212203598 and 212203607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212203631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9036 + ... + 22495.

It is an arithmetic number, because the mean of its divisors is an integer number (23909139).

Almost surely, 2^212203630 is an apocalyptic number.

212203630 is a deficient number, since it is larger than the sum of its proper divisors (170342594).

212203630 is a wasteful number, since it uses less digits than its factorization.

212203630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32211.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 212203630 is about 14567.2107831252. The cubic root of 212203630 is about 596.4640452342.

Adding to 212203630 its reverse (36302212), we get a palindrome (248505842).

The spelling of 212203630 in words is "two hundred twelve million, two hundred three thousand, six hundred thirty".