32222130012 has 36 divisors (see below), whose sum is σ = 81458591760. Its totient is φ = 10739627712.

The previous prime is 32222129911. The next prime is 32222130013. The reversal of 32222130012 is 21003122223.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×32222130012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32222130013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 369289 + ... + 448127.

It is an arithmetic number, because the mean of its divisors is an integer number (2262738660).

Almost surely, 2^32222130012 is an apocalyptic number.

It is an amenable number.

32222130012 is an abundant number, since it is smaller than the sum of its proper divisors (49236461748).

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

32222130012 is a wasteful number, since it uses less digits than its factorization.

32222130012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90202 (or 90197 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 32222130012 its reverse (21003122223), we get a palindrome (53225252235).

The spelling of 32222130012 in words is "thirty-two billion, two hundred twenty-two million, one hundred thirty thousand, twelve".