22451222101 has 16 divisors (see below), whose sum is σ = 28894076928. Its totient is φ = 16930119600.

The previous prime is 22451222063. The next prime is 22451222113. The reversal of 22451222101 is 10122215422.

It is a cyclic number.

It is not a de Polignac number, because 22451222101 - 2¹⁵ = 22451189333 is a prime.

It is a super-4 number, since 4×22451222101⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22451222191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4700425 + ... + 4705198.

It is an arithmetic number, because the mean of its divisors is an integer number (1805879808).

Almost surely, 2^22451222101 is an apocalyptic number.

It is an amenable number.

22451222101 is a deficient number, since it is larger than the sum of its proper divisors (6442854827).

22451222101 is a wasteful number, since it uses less digits than its factorization.

22451222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9405672.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 22451222101 its reverse (10122215422), we get a palindrome (32573437523).

The spelling of 22451222101 in words is "twenty-two billion, four hundred fifty-one million, two hundred twenty-two thousand, one hundred one".