21142411220001 has 8 divisors (see below), whose sum is σ = 28196830097824. Its totient is φ = 14091466577760.

The previous prime is 21142411219973. The next prime is 21142411220033. The reversal of 21142411220001 is 10002211424112.

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

It is not a de Polignac number, because 21142411220001 - 2¹⁰ = 21142411218977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21142411220001.

It is not an unprimeable number, because it can be changed into a prime (21142411227001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868544695 + ... + 868569036.

It is an arithmetic number, because the mean of its divisors is an integer number (3524603762228).

Almost surely, 2^{21142411220001} is an apocalyptic number.

It is an amenable number.

21142411220001 is a deficient number, since it is larger than the sum of its proper divisors (7054418877823).

21142411220001 is a wasteful number, since it uses less digits than its factorization.

21142411220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737117791.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 21142411220001 its reverse (10002211424112), we get a palindrome (31144622644113).

The spelling of 21142411220001 in words is "twenty-one trillion, one hundred forty-two billion, four hundred eleven million, two hundred twenty thousand, one".