22145301321422 has 4 divisors (see below), whose sum is σ = 33217951982136. Its totient is φ = 11072650660710.

The previous prime is 22145301321391. The next prime is 22145301321427. The reversal of 22145301321422 is 22412310354122.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×22145301321422² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145301321427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5536325330354 + ... + 5536325330357.

It is an arithmetic number, because the mean of its divisors is an integer number (8304487995534).

Almost surely, 2^{22145301321422} is an apocalyptic number.

22145301321422 is a deficient number, since it is larger than the sum of its proper divisors (11072650660714).

22145301321422 is a wasteful number, since it uses less digits than its factorization.

22145301321422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11072650660713.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 22145301321422 its reverse (22412310354122), we get a palindrome (44557611675544).

The spelling of 22145301321422 in words is "twenty-two trillion, one hundred forty-five billion, three hundred one million, three hundred twenty-one thousand, four hundred twenty-two".