22022111345 has 32 divisors (see below), whose sum is σ = 28812672000. Its totient is φ = 16061831424.

The previous prime is 22022111341. The next prime is 22022111387. The reversal of 22022111345 is 54311122022.

It is a cyclic number.

It is not a de Polignac number, because 22022111345 - 2² = 22022111341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22022111345.

It is not an unprimeable number, because it can be changed into a prime (22022111341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1727264 + ... + 1739966.

It is an arithmetic number, because the mean of its divisors is an integer number (900396000).

Almost surely, 2^22022111345 is an apocalyptic number.

It is an amenable number.

22022111345 is a deficient number, since it is larger than the sum of its proper divisors (6790560655).

22022111345 is a wasteful number, since it uses less digits than its factorization.

22022111345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13049.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 22022111345 its reverse (54311122022), we get a palindrome (76333233367).

The spelling of 22022111345 in words is "twenty-two billion, twenty-two million, one hundred eleven thousand, three hundred forty-five".