30120022213 has 4 divisors (see below), whose sum is σ = 31705286560. Its totient is φ = 28534757868.

The previous prime is 30120022199. The next prime is 30120022217. The reversal of 30120022213 is 31222002103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31222002103 = 17 ⋅1836588359.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30120022213 is a prime.

It is a super-2 number, since 2×30120022213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120022217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792632145 + ... + 792632182.

It is an arithmetic number, because the mean of its divisors is an integer number (7926321640).

Almost surely, 2^30120022213 is an apocalyptic number.

It is an amenable number.

30120022213 is a deficient number, since it is larger than the sum of its proper divisors (1585264347).

30120022213 is a wasteful number, since it uses less digits than its factorization.

30120022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585264346.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30120022213 its reverse (31222002103), we get a palindrome (61342024316).

The spelling of 30120022213 in words is "thirty billion, one hundred twenty million, twenty-two thousand, two hundred thirteen".