20213022 has 8 divisors (see below), whose sum is σ = 40426056. Its totient is φ = 6737672.

The previous prime is 20212991. The next prime is 20213047. The reversal of 20213022 is 22031202.

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

20213022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20212989 and 20213007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1684413 + ... + 1684424.

It is an arithmetic number, because the mean of its divisors is an integer number (5053257).

Almost surely, 2^20213022 is an apocalyptic number.

20213022 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.

20213022 is a wasteful number, since it uses less digits than its factorization.

20213022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368842.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20213022 is about 4495.8894559364. The cubic root of 20213022 is about 272.4020779942.

Adding to 20213022 its reverse (22031202), we get a palindrome (42244224).

The spelling of 20213022 in words is "twenty million, two hundred thirteen thousand, twenty-two".