30221052 has 12 divisors (see below), whose sum is σ = 70515816. Its totient is φ = 10073680.

The previous prime is 30221041. The next prime is 30221069. The reversal of 30221052 is 25012203.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1259199 + ... + 1259222.

It is an arithmetic number, because the mean of its divisors is an integer number (5876318).

Almost surely, 2^30221052 is an apocalyptic number.

It is an amenable number.

30221052 is an abundant number, since it is smaller than the sum of its proper divisors (40294764).

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

30221052 is a wasteful number, since it uses less digits than its factorization.

30221052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518428 (or 2518426 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 30221052 is about 5497.3677337431. The cubic root of 30221052 is about 311.4845614981.

Adding to 30221052 its reverse (25012203), we get a palindrome (55233255).

The spelling of 30221052 in words is "thirty million, two hundred twenty-one thousand, fifty-two".