22012000120 has 128 divisors (see below), whose sum is σ = 55980564480. Its totient is φ = 7717248000.

The previous prime is 22012000111. The next prime is 22012000133. The reversal of 22012000120 is 2100021022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 22012000097 and 22012000106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3829969 + ... + 3835711.

It is an arithmetic number, because the mean of its divisors is an integer number (437348160).

Almost surely, 2^22012000120 is an apocalyptic number.

22012000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22012000120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27990282240).

22012000120 is an abundant number, since it is smaller than the sum of its proper divisors (33968564360).

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

22012000120 is a wasteful number, since it uses less digits than its factorization.

22012000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6077 (or 6073 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22012000120 its reverse (2100021022), we get a palindrome (24112021142).

The spelling of 22012000120 in words is "twenty-two billion, twelve million, one hundred twenty", and thus it is an aban number.