2223720135 has 80 divisors (see below), whose sum is σ = 4906203456. Its totient is φ = 938345472.

The previous prime is 2223720133. The next prime is 2223720137. The reversal of 2223720135 is 5310273222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2223720133) and next prime (2223720137).

It is not a de Polignac number, because 2223720135 - 2¹ = 2223720133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2223720099 and 2223720108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223720133) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6687 + ... + 67023.

Almost surely, 2^2223720135 is an apocalyptic number.

2223720135 is an abundant number, since it is smaller than the sum of its proper divisors (2682483321).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2223720135 is a wasteful number, since it uses less digits than its factorization.

2223720135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60374 (or 60365 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 2223720135 is about 47156.3371669174. The cubic root of 2223720135 is about 1305.2490210478.

Adding to 2223720135 its reverse (5310273222), we get a palindrome (7533993357).

The spelling of 2223720135 in words is "two billion, two hundred twenty-three million, seven hundred twenty thousand, one hundred thirty-five".