2221403662 has 4 divisors (see below), whose sum is σ = 3332105496. Its totient is φ = 1110701830.

The previous prime is 2221403659. The next prime is 2221403663. The reversal of 2221403662 is 2663041222.

2221403662 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 self number, because there is not a number n which added to its sum of digits gives 2221403662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221403663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555350914 + ... + 555350917.

It is an arithmetic number, because the mean of its divisors is an integer number (833026374).

Almost surely, 2^2221403662 is an apocalyptic number.

2221403662 is a deficient number, since it is larger than the sum of its proper divisors (1110701834).

2221403662 is a wasteful number, since it uses less digits than its factorization.

2221403662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110701833.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 2221403662 is about 47131.7691371754. The cubic root of 2221403662 is about 1304.7956329659.

Adding to 2221403662 its reverse (2663041222), we get a palindrome (4884444884).

The spelling of 2221403662 in words is "two billion, two hundred twenty-one million, four hundred three thousand, six hundred sixty-two".