20120222 has 8 divisors (see below), whose sum is σ = 30211272. Its totient is φ = 10049800.

The previous prime is 20120213. The next prime is 20120237. The reversal of 20120222 is 22202102.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2429 + ... + 6792.

It is an arithmetic number, because the mean of its divisors is an integer number (3776409).

Almost surely, 2^20120222 is an apocalyptic number.

20120222 is a deficient number, since it is larger than the sum of its proper divisors (10091050).

20120222 is a wasteful number, since it uses less digits than its factorization.

20120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10314.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 20120222 is about 4485.5570445598. The cubic root of 20120222 is about 271.9845633541.

Adding to 20120222 its reverse (22202102), we get a palindrome (42322324).

The spelling of 20120222 in words is "twenty million, one hundred twenty thousand, two hundred twenty-two".