212241101213421 has 64 divisors (see below), whose sum is σ = 380744133672960. Its totient is φ = 114069709105920.

The previous prime is 212241101213371. The next prime is 212241101213443. The reversal of 212241101213421 is 124312101142212.

212241101213421 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 4 + 110 + 121 + 3 + 421 = 666.

212241101213421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212241101213421 - 2⁶ = 212241101213357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212241101213621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17433765 + ... + 26989226.

It is an arithmetic number, because the mean of its divisors is an integer number (5949127088640).

Almost surely, 2^{212241101213421} is an apocalyptic number.

212241101213421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212241101213421 is a deficient number, since it is larger than the sum of its proper divisors (168503032459539).

212241101213421 is a wasteful number, since it uses less digits than its factorization.

212241101213421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44424511 (or 44424505 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 212241101213421 its reverse (124312101142212), we get a palindrome (336553202355633).

The spelling of 212241101213421 in words is "two hundred twelve trillion, two hundred forty-one billion, one hundred one million, two hundred thirteen thousand, four hundred twenty-one".