30445111221 has 8 divisors (see below), whose sum is σ = 46392550464. Its totient is φ = 17397206400.

The previous prime is 30445111171. The next prime is 30445111231. The reversal of 30445111221 is 12211154403.

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

It is not a de Polignac number, because 30445111221 - 2⁶ = 30445111157 is a prime.

It is a super-2 number, since 2×30445111221² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30445111191 and 30445111200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30445111231) 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, 724883580 + ... + 724883621.

It is an arithmetic number, because the mean of its divisors is an integer number (5799068808).

Almost surely, 2^30445111221 is an apocalyptic number.

It is an amenable number.

30445111221 is a deficient number, since it is larger than the sum of its proper divisors (15947439243).

30445111221 is a wasteful number, since it uses less digits than its factorization.

30445111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449767211.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 30445111221 its reverse (12211154403), we get a palindrome (42656265624).

The spelling of 30445111221 in words is "thirty billion, four hundred forty-five million, one hundred eleven thousand, two hundred twenty-one".