213220622 has 8 divisors (see below), whose sum is σ = 336664200. Its totient is φ = 100999224.

The previous prime is 213220619. The next prime is 213220633. The reversal of 213220622 is 226022312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 213220594 and 213220603.

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, 2805497 + ... + 2805572.

It is an arithmetic number, because the mean of its divisors is an integer number (42083025).

Almost surely, 2^213220622 is an apocalyptic number.

213220622 is a deficient number, since it is larger than the sum of its proper divisors (123443578).

213220622 is a wasteful number, since it uses less digits than its factorization.

213220622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611090.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 213220622 is about 14602.0759483027. The cubic root of 213220622 is about 597.4153841066.

Adding to 213220622 its reverse (226022312), we get a palindrome (439242934).

The spelling of 213220622 in words is "two hundred thirteen million, two hundred twenty thousand, six hundred twenty-two".