30122133221 has 8 divisors (see below), whose sum is σ = 31340953080. Its totient is φ = 28915321792.

The previous prime is 30122133191. The next prime is 30122133269. The reversal of 30122133221 is 12233122103.

It can be written as a sum of positive squares in 4 ways, for example, as 9811893025 + 20310240196 = 99055^2 + 142514^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30122133221 - 2³⁴ = 12942264037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30122133193 and 30122133202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122133271) 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, 2996990 + ... + 3007023.

It is an arithmetic number, because the mean of its divisors is an integer number (3917619135).

Almost surely, 2^30122133221 is an apocalyptic number.

It is an amenable number.

30122133221 is a deficient number, since it is larger than the sum of its proper divisors (1218819859).

30122133221 is a wasteful number, since it uses less digits than its factorization.

30122133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6004215.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30122133221 its reverse (12233122103), we get a palindrome (42355255324).

The spelling of 30122133221 in words is "thirty billion, one hundred twenty-two million, one hundred thirty-three thousand, two hundred twenty-one".