21214042011201 has 96 divisors (see below), whose sum is σ = 31550183378560. Its totient is φ = 12602597289984.

The previous prime is 21214042011199. The next prime is 21214042011229. The reversal of 21214042011201 is 10211024041212.

It is not a de Polignac number, because 21214042011201 - 2¹ = 21214042011199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21214042011301) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2565486495 + ... + 2565494763.

Almost surely, 2^{21214042011201} is an apocalyptic number.

It is an amenable number.

21214042011201 is a deficient number, since it is larger than the sum of its proper divisors (10336141367359).

21214042011201 is a wasteful number, since it uses less digits than its factorization.

21214042011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8783 (or 8736 counting only the distinct ones).

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

Adding to 21214042011201 its reverse (10211024041212), we get a palindrome (31425066052413).

The spelling of 21214042011201 in words is "twenty-one trillion, two hundred fourteen billion, forty-two million, eleven thousand, two hundred one".