22131033020 has 24 divisors (see below), whose sum is σ = 47237059968. Its totient is φ = 8707291200.

The previous prime is 22131033011. The next prime is 22131033031. The reversal of 22131033020 is 2033013122.

It is a self number, because there is not a number n which added to its sum of digits gives 22131033020.

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, 9068876 + ... + 9071315.

It is an arithmetic number, because the mean of its divisors is an integer number (1968210832).

Almost surely, 2^22131033020 is an apocalyptic number.

22131033020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22131033020 is an abundant number, since it is smaller than the sum of its proper divisors (25106026948).

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

22131033020 is a wasteful number, since it uses less digits than its factorization.

22131033020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18140261 (or 18140259 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 22131033020 its reverse (2033013122), we get a palindrome (24164046142).

The spelling of 22131033020 in words is "twenty-two billion, one hundred thirty-one million, thirty-three thousand, twenty".