30010120221 has 32 divisors (see below), whose sum is σ = 40578291712. Its totient is φ = 19727089920.

The previous prime is 30010120211. The next prime is 30010120253. The reversal of 30010120221 is 12202101003.

It is not a de Polignac number, because 30010120221 - 2¹⁸ = 30009858077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30010120197 and 30010120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30010120211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57380466 + ... + 57380988.

It is an arithmetic number, because the mean of its divisors is an integer number (1268071616).

Almost surely, 2^30010120221 is an apocalyptic number.

It is an amenable number.

30010120221 is a deficient number, since it is larger than the sum of its proper divisors (10568171491).

30010120221 is a wasteful number, since it uses less digits than its factorization.

30010120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30010120221 its reverse (12202101003), we get a palindrome (42212221224).

The spelling of 30010120221 in words is "thirty billion, ten million, one hundred twenty thousand, two hundred twenty-one".