22173103512 has 512 divisors, whose sum is σ = 76581120000. Its totient is φ = 5804752896.

The previous prime is 22173103499. The next prime is 22173103559. The reversal of 22173103512 is 21530137122.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 203422914 + ... + 203423022.

It is an arithmetic number, because the mean of its divisors is an integer number (149572500).

Almost surely, 2^22173103512 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 22173103512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38290560000).

22173103512 is an abundant number, since it is smaller than the sum of its proper divisors (54408016488).

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

22173103512 is a wasteful number, since it uses less digits than its factorization.

22173103512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The spelling of 22173103512 in words is "twenty-two billion, one hundred seventy-three million, one hundred three thousand, five hundred twelve".