22120300032 has 80 divisors (see below), whose sum is σ = 59481050112. Its totient is φ = 7304468480.

The previous prime is 22120300021. The next prime is 22120300051. The reversal of 22120300032 is 23000302122.

It is a junction number, because it is equal to n+sod(n) for n = 22120299984 and 22120300020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97057 + ... + 231647.

Almost surely, 2^22120300032 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 22120300032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29740525056).

22120300032 is an abundant number, since it is smaller than the sum of its proper divisors (37360750080).

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

22120300032 is a wasteful number, since it uses less digits than its factorization.

22120300032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134719 (or 134703 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 22120300032 its reverse (23000302122), we get a palindrome (45120602154).

The spelling of 22120300032 in words is "twenty-two billion, one hundred twenty million, three hundred thousand, thirty-two".