221442120303 has 32 divisors (see below), whose sum is σ = 311457484800. Its totient is φ = 139560876000.

The previous prime is 221442120287. The next prime is 221442120359. The reversal of 221442120303 is 303021244122.

It is a happy number.

It is not a de Polignac number, because 221442120303 - 2⁴ = 221442120287 is a prime.

It is a super-2 number, since 2×221442120303² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221442120503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75344608 + ... + 75347546.

It is an arithmetic number, because the mean of its divisors is an integer number (9733046400).

Almost surely, 2^221442120303 is an apocalyptic number.

221442120303 is a deficient number, since it is larger than the sum of its proper divisors (90015364497).

221442120303 is a wasteful number, since it uses less digits than its factorization.

221442120303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 221442120303 its reverse (303021244122), we get a palindrome (524463364425).

The spelling of 221442120303 in words is "two hundred twenty-one billion, four hundred forty-two million, one hundred twenty thousand, three hundred three".