30221112440 has 32 divisors (see below), whose sum is σ = 68159826000. Its totient is φ = 12059587584.

The previous prime is 30221112437. The next prime is 30221112443. The reversal of 30221112440 is 4421112203.

It is an interprime number because it is at equal distance from previous prime (30221112437) and next prime (30221112443).

It is a super-2 number, since 2×30221112440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221112443) 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, 884825 + ... + 918344.

Almost surely, 2^30221112440 is an apocalyptic number.

It is an amenable number.

30221112440 is an abundant number, since it is smaller than the sum of its proper divisors (37938713560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30221112440 is a wasteful number, since it uses less digits than its factorization.

30221112440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803599 (or 1803595 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 30221112440 its reverse (4421112203), we get a palindrome (34642224643).

The spelling of 30221112440 in words is "thirty billion, two hundred twenty-one million, one hundred twelve thousand, four hundred forty".