20211421340201 has 16 divisors (see below), whose sum is σ = 24879030739584. Its totient is φ = 15989245876224.

The previous prime is 20211421340153. The next prime is 20211421340219. The reversal of 20211421340201 is 10204312411202.

It is a cyclic number.

It is not a de Polignac number, because 20211421340201 - 2¹⁰ = 20211421339177 is a prime.

It is a super-2 number, since 2×20211421340201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20211421340281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14673176 + ... + 15991401.

It is an arithmetic number, because the mean of its divisors is an integer number (1554939421224).

Almost surely, 2^{20211421340201} is an apocalyptic number.

It is an amenable number.

20211421340201 is a deficient number, since it is larger than the sum of its proper divisors (4667609399383).

20211421340201 is a wasteful number, since it uses less digits than its factorization.

20211421340201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30671840.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 20211421340201 its reverse (10204312411202), we get a palindrome (30415733751403).

The spelling of 20211421340201 in words is "twenty trillion, two hundred eleven billion, four hundred twenty-one million, three hundred forty thousand, two hundred one".