10021213442 has 8 divisors (see below), whose sum is σ = 15169727100. Its totient is φ = 4964637744.

The previous prime is 10021213381. The next prime is 10021213451. The reversal of 10021213442 is 24431212001.

It can be written as a sum of positive squares in 2 ways, for example, as 9773497321 + 247716121 = 98861^2 + 15739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22984217 + ... + 22984652.

Almost surely, 2^10021213442 is an apocalyptic number.

10021213442 is a deficient number, since it is larger than the sum of its proper divisors (5148513658).

10021213442 is a wasteful number, since it uses less digits than its factorization.

10021213442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45968980.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10021213442 its reverse (24431212001), we get a palindrome (34452425443).

The spelling of 10021213442 in words is "ten billion, twenty-one million, two hundred thirteen thousand, four hundred forty-two".