22230511801 has 3 divisors (see below), whose sum is σ = 22230660901. Its totient is φ = 22230362702.

The previous prime is 22230511799. The next prime is 22230511813. The reversal of 22230511801 is 10811503222.

The square root of 22230511801 is 149099.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 22230511801 - 2¹ = 22230511799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22230511861) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 74550 + ... + 223648.

Almost surely, 2^22230511801 is an apocalyptic number.

22230511801 is the 149099-th square number.

22230511801 is the 74550-th centered octagonal number.

It is an amenable number.

22230511801 is a deficient number, since it is larger than the sum of its proper divisors (149100).

22230511801 is an frugal number, since it uses more digits than its factorization.

22230511801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298198 (or 149099 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Multiplying 22230511801 by its sum of digits (25), we get a square (555762795025 = 745495²).

The spelling of 22230511801 in words is "twenty-two billion, two hundred thirty million, five hundred eleven thousand, eight hundred one".