7242211 has 4 divisors (see below), whose sum is σ = 7623400. Its totient is φ = 6861024.

The previous prime is 7242203. The next prime is 7242233. The reversal of 7242211 is 1122427.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7242211 - 2³ = 7242203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 381169 = 7242211 / (7 + 2 + 4 + 2 + 2 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7242241) 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, 190566 + ... + 190603.

It is an arithmetic number, because the mean of its divisors is an integer number (1905850).

Almost surely, 2^7242211 is an apocalyptic number.

7242211 is a deficient number, since it is larger than the sum of its proper divisors (381189).

7242211 is a wasteful number, since it uses less digits than its factorization.

7242211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381188.

The product of its digits is 224, while the sum is 19.

The square root of 7242211 is about 2691.1356338914. The cubic root of 7242211 is about 193.4744962570.

Adding to 7242211 its reverse (1122427), we get a palindrome (8364638).

The spelling of 7242211 in words is "seven million, two hundred forty-two thousand, two hundred eleven".