30622121 has 8 divisors (see below), whose sum is σ = 31903200. Its totient is φ = 29366560.

The previous prime is 30622099. The next prime is 30622139. The reversal of 30622121 is 12122603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30622121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30622121.

It is not an unprimeable number, because it can be changed into a prime (30622021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3911 + ... + 8748.

It is an arithmetic number, because the mean of its divisors is an integer number (3987900).

Almost surely, 2^30622121 is an apocalyptic number.

It is an amenable number.

30622121 is a deficient number, since it is larger than the sum of its proper divisors (1281079).

30622121 is a wasteful number, since it uses less digits than its factorization.

30622121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12759.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30622121 is about 5533.7257792558. The cubic root of 30622121 is about 312.8564329831.

Adding to 30622121 its reverse (12122603), we get a palindrome (42744724).

The spelling of 30622121 in words is "thirty million, six hundred twenty-two thousand, one hundred twenty-one".