211301021000442 has 16 divisors (see below), whose sum is σ = 424447465767840. Its totient is φ = 70126103038992.

The previous prime is 211301021000431. The next prime is 211301021000473. The reversal of 211301021000442 is 244000120103112.

It is a super-2 number, since 2×211301021000442² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76892655468 + ... + 76892658215.

It is an arithmetic number, because the mean of its divisors is an integer number (26527966610490).

Almost surely, 2^{211301021000442} is an apocalyptic number.

211301021000442 is an abundant number, since it is smaller than the sum of its proper divisors (213146444767398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211301021000442 is a wasteful number, since it uses less digits than its factorization.

211301021000442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153785313917.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 211301021000442 its reverse (244000120103112), we get a palindrome (455301141103554).

The spelling of 211301021000442 in words is "two hundred eleven trillion, three hundred one billion, twenty-one million, four hundred forty-two", and thus it is an aban number.