21221410341 has 16 divisors (see below), whose sum is σ = 28517868288. Its totient is φ = 14036644800.

The previous prime is 21221410337. The next prime is 21221410349. The reversal of 21221410341 is 14301412212.

It is not a de Polignac number, because 21221410341 - 2² = 21221410337 is a prime.

It is a super-2 number, since 2×21221410341² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21221410349) 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, 188695 + ... + 279371.

It is an arithmetic number, because the mean of its divisors is an integer number (1782366768).

Almost surely, 2^21221410341 is an apocalyptic number.

It is an amenable number.

21221410341 is a deficient number, since it is larger than the sum of its proper divisors (7296457947).

21221410341 is a wasteful number, since it uses less digits than its factorization.

21221410341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91292.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21221410341 its reverse (14301412212), we get a palindrome (35522822553).

The spelling of 21221410341 in words is "twenty-one billion, two hundred twenty-one million, four hundred ten thousand, three hundred forty-one".