1142410221 has 6 divisors (see below), whose sum is σ = 1650148110. Its totient is φ = 761606808.

The previous prime is 1142410219. The next prime is 1142410229. The reversal of 1142410221 is 1220142411.

1142410221 is a `hidden beast` number, since 11 + 424 + 10 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 929396196 + 213014025 = 30486^2 + 14595^2 .

It is not a de Polignac number, because 1142410221 - 2¹ = 1142410219 is a prime.

It is a super-2 number, since 2×1142410221² = 2610202226090537682, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1142410194 and 1142410203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142410229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63467226 + ... + 63467243.

It is an arithmetic number, because the mean of its divisors is an integer number (275024685).

Almost surely, 2^1142410221 is an apocalyptic number.

It is an amenable number.

1142410221 is a deficient number, since it is larger than the sum of its proper divisors (507737889).

1142410221 is a wasteful number, since it uses less digits than its factorization.

1142410221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126934475 (or 126934472 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1142410221 is about 33799.5594793778. The cubic root of 1142410221 is about 1045.3796140718.

Adding to 1142410221 its reverse (1220142411), we get a palindrome (2362552632).

The spelling of 1142410221 in words is "one billion, one hundred forty-two million, four hundred ten thousand, two hundred twenty-one".