10221354242 has 54 divisors (see below), whose sum is σ = 17286036201. Its totient is φ = 4529543040.

The previous prime is 10221354203. The next prime is 10221354271. The reversal of 10221354242 is 24245312201.

It can be written as a sum of positive squares in 2 ways, for example, as 10194738961 + 26615281 = 100969^2 + 5159^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=71489.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 105374738 + ... + 105374834.

Almost surely, 2^10221354242 is an apocalyptic number.

10221354242 is a deficient number, since it is larger than the sum of its proper divisors (7064681959).

10221354242 is an frugal number, since it uses more digits than its factorization.

10221354242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 10221354242 its reverse (24245312201), we get a palindrome (34466666443).

It can be divided in two parts, 10221 and 354242, that added together give a palindrome (364463).

The spelling of 10221354242 in words is "ten billion, two hundred twenty-one million, three hundred fifty-four thousand, two hundred forty-two".