2221233451 has 8 divisors (see below), whose sum is σ = 2227051008. Its totient is φ = 2215425000.

The previous prime is 2221233439. The next prime is 2221233461. The reversal of 2221233451 is 1543321222.

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 2221233451 - 2⁹ = 2221232939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221233461) 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, 817986 + ... + 820696.

It is an arithmetic number, because the mean of its divisors is an integer number (278381376).

Almost surely, 2^2221233451 is an apocalyptic number.

2221233451 is a deficient number, since it is larger than the sum of its proper divisors (5817557).

2221233451 is a wasteful number, since it uses less digits than its factorization.

2221233451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4553.

The product of its digits is 2880, while the sum is 25.

The square root of 2221233451 is about 47129.9634097036. The cubic root of 2221233451 is about 1304.7623062536.

Adding to 2221233451 its reverse (1543321222), we get a palindrome (3764554673).

The spelling of 2221233451 in words is "two billion, two hundred twenty-one million, two hundred thirty-three thousand, four hundred fifty-one".