222106620 has 48 divisors (see below), whose sum is σ = 628901280. Its totient is φ = 58561536.

The previous prime is 222106603. The next prime is 222106657. The reversal of 222106620 is 26601222.

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 in 15 ways as a sum of consecutive naturals, for example, 15457 + ... + 26136.

It is an arithmetic number, because the mean of its divisors is an integer number (13102110).

Almost surely, 2^222106620 is an apocalyptic number.

222106620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222106620 is an abundant number, since it is smaller than the sum of its proper divisors (406794660).

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

222106620 is a wasteful number, since it uses less digits than its factorization.

222106620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41694 (or 41692 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 222106620 is about 14903.2419291911. The cubic root of 222106620 is about 605.6018144700.

Adding to 222106620 its reverse (26601222), we get a palindrome (248707842).

The spelling of 222106620 in words is "two hundred twenty-two million, one hundred six thousand, six hundred twenty".