222621464 has 16 divisors (see below), whose sum is σ = 449524320. Its totient is φ = 102748320.

The previous prime is 222621463. The next prime is 222621517. The reversal of 222621464 is 464126222.

222621464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222621463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070192 + ... + 1070399.

It is an arithmetic number, because the mean of its divisors is an integer number (28095270).

Almost surely, 2^222621464 is an apocalyptic number.

It is an amenable number.

222621464 is an abundant number, since it is smaller than the sum of its proper divisors (226902856).

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

222621464 is a wasteful number, since it uses less digits than its factorization.

222621464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140610 (or 2140606 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 222621464 is about 14920.5048171970. The cubic root of 222621464 is about 606.0693824933.

Adding to 222621464 its reverse (464126222), we get a palindrome (686747686).

The spelling of 222621464 in words is "two hundred twenty-two million, six hundred twenty-one thousand, four hundred sixty-four".