222150642 has 32 divisors (see below), whose sum is σ = 519585792. Its totient is φ = 61995024.

The previous prime is 222150637. The next prime is 222150647. The reversal of 222150642 is 246051222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222150637) and next prime (222150647).

It is not an unprimeable number, because it can be changed into a prime (222150647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59698 + ... + 63309.

It is an arithmetic number, because the mean of its divisors is an integer number (16237056).

Almost surely, 2^222150642 is an apocalyptic number.

222150642 is an abundant number, since it is smaller than the sum of its proper divisors (297435150).

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

222150642 is a wasteful number, since it uses less digits than its factorization.

222150642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123062.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 222150642 is about 14904.7187829895. The cubic root of 222150642 is about 605.6418223454.

The spelling of 222150642 in words is "two hundred twenty-two million, one hundred fifty thousand, six hundred forty-two".