30222313212 has 96 divisors (see below), whose sum is σ = 89138140672. Its totient is φ = 7755284736.

The previous prime is 30222313189. The next prime is 30222313213. The reversal of 30222313212 is 21231322203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222313213) 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, 333598 + ... + 414405.

Almost surely, 2^30222313212 is an apocalyptic number.

It is an amenable number.

30222313212 is an abundant number, since it is smaller than the sum of its proper divisors (58915827460).

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

30222313212 is a wasteful number, since it uses less digits than its factorization.

30222313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748067 (or 748065 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30222313212 its reverse (21231322203), we get a palindrome (51453635415).

The spelling of 30222313212 in words is "thirty billion, two hundred twenty-two million, three hundred thirteen thousand, two hundred twelve".