22120152231 has 8 divisors (see below), whose sum is σ = 29556693504. Its totient is φ = 14715189560.

The previous prime is 22120152221. The next prime is 22120152251. The reversal of 22120152231 is 13225102122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22120152231 - 2⁵ = 22120152199 is a prime.

It is a super-2 number, since 2×22120152231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22120152198 and 22120152207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120152221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7893015 + ... + 7895816.

It is an arithmetic number, because the mean of its divisors is an integer number (3694586688).

Almost surely, 2^22120152231 is an apocalyptic number.

22120152231 is a deficient number, since it is larger than the sum of its proper divisors (7436541273).

22120152231 is a wasteful number, since it uses less digits than its factorization.

22120152231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15789301.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 22120152231 its reverse (13225102122), we get a palindrome (35345254353).

The spelling of 22120152231 in words is "twenty-two billion, one hundred twenty million, one hundred fifty-two thousand, two hundred thirty-one".