30021122 has 4 divisors (see below), whose sum is σ = 45031686. Its totient is φ = 15010560.

The previous prime is 30021091. The next prime is 30021137. The reversal of 30021122 is 22112003.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 30019441 + 1681 = 5479^2 + 41^2 .

It is a super-2 number, since 2×30021122² = 1802535532277768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7505279 + ... + 7505282.

Almost surely, 2^30021122 is an apocalyptic number.

30021122 is a deficient number, since it is larger than the sum of its proper divisors (15010564).

30021122 is a wasteful number, since it uses less digits than its factorization.

30021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15010563.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30021122 is about 5479.1534017583. The cubic root of 30021122 is about 310.7961567822.

Adding to 30021122 its reverse (22112003), we get a palindrome (52133125).

The spelling of 30021122 in words is "thirty million, twenty-one thousand, one hundred twenty-two".