213122022 has 8 divisors (see below), whose sum is σ = 426244056. Its totient is φ = 71040672.

The previous prime is 213121991. The next prime is 213122029. The reversal of 213122022 is 220221312.

It is a happy number.

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

213122022 is an admirable number.

It is a super-2 number, since 2×213122022² = 90841992522736968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213121992 and 213122010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213122029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17760163 + ... + 17760174.

It is an arithmetic number, because the mean of its divisors is an integer number (53280507).

Almost surely, 2^213122022 is an apocalyptic number.

213122022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213122022 is a wasteful number, since it uses less digits than its factorization.

213122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35520342.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 213122022 is about 14598.6993256249. The cubic root of 213122022 is about 597.3232819473.

Adding to 213122022 its reverse (220221312), we get a palindrome (433343334).

The spelling of 213122022 in words is "two hundred thirteen million, one hundred twenty-two thousand, twenty-two".