213220022 has 4 divisors (see below), whose sum is σ = 319830036. Its totient is φ = 106610010.

The previous prime is 213220019. The next prime is 213220057. The reversal of 213220022 is 220022312.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 213219979 and 213220006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53305004 + ... + 53305007.

It is an arithmetic number, because the mean of its divisors is an integer number (79957509).

Almost surely, 2^213220022 is an apocalyptic number.

213220022 is a deficient number, since it is larger than the sum of its proper divisors (106610014).

213220022 is a wasteful number, since it uses less digits than its factorization.

213220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106610013.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 213220022 is about 14602.0554032643. The cubic root of 213220022 is about 597.4148237330.

Adding to 213220022 its reverse (220022312), we get a palindrome (433242334).

The spelling of 213220022 in words is "two hundred thirteen million, two hundred twenty thousand, twenty-two".