30031222000 has 160 divisors (see below), whose sum is σ = 78781457664. Its totient is φ = 11006208000.

The previous prime is 30031221971. The next prime is 30031222003. The reversal of 30031222000 is 22213003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031222003) 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, 3557785 + ... + 3566215.

Almost surely, 2^30031222000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30031222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39390728832).

30031222000 is an abundant number, since it is smaller than the sum of its proper divisors (48750235664).

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

30031222000 is a wasteful number, since it uses less digits than its factorization.

30031222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8604 (or 8588 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 30031222000 its reverse (22213003), we get a palindrome (30053435003).

The spelling of 30031222000 in words is "thirty billion, thirty-one million, two hundred twenty-two thousand".