213031022 has 8 divisors (see below), whose sum is σ = 320418336. Its totient is φ = 106224912.

The previous prime is 213031019. The next prime is 213031031. The reversal of 213031022 is 220130312.

It is a happy number.

213031022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 213030988 and 213031006.

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, 144383 + ... + 145850.

It is an arithmetic number, because the mean of its divisors is an integer number (40052292).

Almost surely, 2^213031022 is an apocalyptic number.

213031022 is a deficient number, since it is larger than the sum of its proper divisors (107387314).

213031022 is a wasteful number, since it uses less digits than its factorization.

213031022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290602.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 213031022 is about 14595.5822768398. The cubic root of 213031022 is about 597.2382537297.

Adding to 213031022 its reverse (220130312), we get a palindrome (433161334).

The spelling of 213031022 in words is "two hundred thirteen million, thirty-one thousand, twenty-two".