7222152 has 32 divisors (see below), whose sum is σ = 20635200. Its totient is φ = 2063424.

The previous prime is 7222133. The next prime is 7222153. The reversal of 7222152 is 2512227.

It is a happy number.

It is a super-2 number, since 2×7222152² = 104318959022208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (7222153) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21327 + ... + 21662.

It is an arithmetic number, because the mean of its divisors is an integer number (644850).

Almost surely, 2^7222152 is an apocalyptic number.

It is an amenable number.

7222152 is an abundant number, since it is smaller than the sum of its proper divisors (13413048).

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

7222152 is a wasteful number, since it uses less digits than its factorization.

7222152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43005 (or 43001 counting only the distinct ones).

The product of its digits is 560, while the sum is 21.

The square root of 7222152 is about 2687.4061844090. The cubic root of 7222152 is about 193.2957067746.

Adding to 7222152 its reverse (2512227), we get a palindrome (9734379).

The spelling of 7222152 in words is "seven million, two hundred twenty-two thousand, one hundred fifty-two".