21012020233301 has 8 divisors (see below), whose sum is σ = 21570271469184. Its totient is φ = 20458401788160.

The previous prime is 21012020233283. The next prime is 21012020233327. The reversal of 21012020233301 is 10333202021012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21012020233301 is a prime.

It is a super-2 number, since 2×21012020233301² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21012020233201) 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 7 ways as a sum of consecutive naturals, for example, 1158188495 + ... + 1158206636.

It is an arithmetic number, because the mean of its divisors is an integer number (2696283933648).

Almost surely, 2^{21012020233301} is an apocalyptic number.

It is an amenable number.

21012020233301 is a deficient number, since it is larger than the sum of its proper divisors (558251235883).

21012020233301 is a wasteful number, since it uses less digits than its factorization.

21012020233301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316395371.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21012020233301 its reverse (10333202021012), we get a palindrome (31345222254313).

The spelling of 21012020233301 in words is "twenty-one trillion, twelve billion, twenty million, two hundred thirty-three thousand, three hundred one".