214100420040421 has 4 divisors (see below), whose sum is σ = 214143821711692. Its totient is φ = 214057018369152.

The previous prime is 214100420040307. The next prime is 214100420040571. The reversal of 214100420040421 is 124040024001412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87613531244100 + 126486888796321 = 9360210^2 + 11246639^2 .

It is a cyclic number.

It is not a de Polignac number, because 214100420040421 - 2¹⁷ = 214100419909349 is a prime.

It is a super-2 number, since 2×214100420040421² (a number of 29 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 (214100420040721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21700828236 + ... + 21700838101.

It is an arithmetic number, because the mean of its divisors is an integer number (53535955427923).

Almost surely, 2^{214100420040421} is an apocalyptic number.

It is an amenable number.

214100420040421 is a deficient number, since it is larger than the sum of its proper divisors (43401671271).

214100420040421 is an equidigital number, since it uses as much as digits as its factorization.

214100420040421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43401671270.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 214100420040421 its reverse (124040024001412), we get a palindrome (338140444041833).

The spelling of 214100420040421 in words is "two hundred fourteen trillion, one hundred billion, four hundred twenty million, forty thousand, four hundred twenty-one".