30222031 has 16 divisors (see below), whose sum is σ = 36417600. Its totient is φ = 24539424.

The previous prime is 30222013. The next prime is 30222037. The reversal of 30222031 is 13022203.

It is a happy number.

It is not a de Polignac number, because 30222031 - 2¹¹ = 30219983 is a prime.

It is a super-3 number, since 3×30222031³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222037) 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, 570201 + ... + 570253.

It is an arithmetic number, because the mean of its divisors is an integer number (2276100).

Almost surely, 2^30222031 is an apocalyptic number.

30222031 is a deficient number, since it is larger than the sum of its proper divisors (6195569).

30222031 is an frugal number, since it uses more digits than its factorization.

30222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30222031 is about 5497.4567756373. The cubic root of 30222031 is about 311.4879249382.

Adding to 30222031 its reverse (13022203), we get a palindrome (43244234).

The spelling of 30222031 in words is "thirty million, two hundred twenty-two thousand, thirty-one".