22720435033 has 8 divisors (see below), whose sum is σ = 23746209480. Its totient is φ = 21710814720.

The previous prime is 22720435019. The next prime is 22720435097. The reversal of 22720435033 is 33053402722.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 299209 + 22720135824 = 547^2 + 150732^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22720435033 is a prime.

It is a super-2 number, since 2×22720435033² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22720434986 and 22720435004.

It is not an unprimeable number, because it can be changed into a prime (22720438033) 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, 4035658 + ... + 4041283.

It is an arithmetic number, because the mean of its divisors is an integer number (2968276185).

Almost surely, 2^22720435033 is an apocalyptic number.

It is an amenable number.

22720435033 is a deficient number, since it is larger than the sum of its proper divisors (1025774447).

22720435033 is an equidigital number, since it uses as much as digits as its factorization.

22720435033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8077067.

The product of its (nonzero) digits is 30240, while the sum is 31.

Adding to 22720435033 its reverse (33053402722), we get a palindrome (55773837755).

The spelling of 22720435033 in words is "twenty-two billion, seven hundred twenty million, four hundred thirty-five thousand, thirty-three".