10021211204542 has 8 divisors (see below), whose sum is σ = 15048956851416. Its totient is φ = 5004892254072.

The previous prime is 10021211204533. The next prime is 10021211204579. The reversal of 10021211204542 is 24540211212001.

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

It is a super-2 number, since 2×10021211204542² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2856671908 + ... + 2856675415.

It is an arithmetic number, because the mean of its divisors is an integer number (1881119606427).

Almost surely, 2^{10021211204542} is an apocalyptic number.

10021211204542 is a deficient number, since it is larger than the sum of its proper divisors (5027745646874).

10021211204542 is an equidigital number, since it uses as much as digits as its factorization.

10021211204542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5713348202.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 10021211204542 its reverse (24540211212001), we get a palindrome (34561422416543).

The spelling of 10021211204542 in words is "ten trillion, twenty-one billion, two hundred eleven million, two hundred four thousand, five hundred forty-two".