7220061 has 12 divisors (see below), whose sum is σ = 10576800. Its totient is φ = 4745160.

The previous prime is 7220033. The next prime is 7220089. The reversal of 7220061 is 1600227.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7220033) and next prime (7220089).

It is not a de Polignac number, because 7220061 - 2⁶ = 7219997 is a prime.

It is a super-3 number, since 3×7220061³ (a number of 22 digits) contains 333 as substring.

7220061 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5011 + ... + 6288.

It is an arithmetic number, because the mean of its divisors is an integer number (881400).

Almost surely, 2^7220061 is an apocalyptic number.

7220061 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

7220061 is a deficient number, since it is larger than the sum of its proper divisors (3356739).

7220061 is a wasteful number, since it uses less digits than its factorization.

7220061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11376 (or 11373 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 7220061 is about 2687.0171194096. The cubic root of 7220061 is about 193.2770502700.

Adding to 7220061 its reverse (1600227), we get a palindrome (8820288).

The spelling of 7220061 in words is "seven million, two hundred twenty thousand, sixty-one".