222136620 has 48 divisors (see below), whose sum is σ = 658572768. Its totient is φ = 55751680.

The previous prime is 222136597. The next prime is 222136633. The reversal of 222136620 is 26631222.

222136620 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107871 + ... + 109910.

It is an arithmetic number, because the mean of its divisors is an integer number (13720266).

Almost surely, 2^222136620 is an apocalyptic number.

222136620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222136620 is an abundant number, since it is smaller than the sum of its proper divisors (436436148).

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

222136620 is a wasteful number, since it uses less digits than its factorization.

222136620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217810 (or 217808 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 222136620 is about 14904.2483876242. The cubic root of 222136620 is about 605.6290795083.

Adding to 222136620 its reverse (26631222), we get a palindrome (248767842).

The spelling of 222136620 in words is "two hundred twenty-two million, one hundred thirty-six thousand, six hundred twenty".