2221345534 has 4 divisors (see below), whose sum is σ = 3332018304. Its totient is φ = 1110672766.

The previous prime is 2221345531. The next prime is 2221345541. The reversal of 2221345534 is 4355431222.

2221345534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 2221345496 and 2221345505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221345531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555336382 + ... + 555336385.

It is an arithmetic number, because the mean of its divisors is an integer number (833004576).

Almost surely, 2^2221345534 is an apocalyptic number.

2221345534 is a deficient number, since it is larger than the sum of its proper divisors (1110672770).

2221345534 is a wasteful number, since it uses less digits than its factorization.

2221345534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110672769.

The product of its digits is 28800, while the sum is 31.

The square root of 2221345534 is about 47131.1524790133. The cubic root of 2221345534 is about 1304.7842519003.

Adding to 2221345534 its reverse (4355431222), we get a palindrome (6576776756).

The spelling of 2221345534 in words is "two billion, two hundred twenty-one million, three hundred forty-five thousand, five hundred thirty-four".