21412221410 has 16 divisors (see below), whose sum is σ = 38600496000. Its totient is φ = 8551889136.

The previous prime is 21412221409. The next prime is 21412221421. The reversal of 21412221410 is 1412221412.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618010 + ... + 1631189.

It is an arithmetic number, because the mean of its divisors is an integer number (2412531000).

Almost surely, 2^21412221410 is an apocalyptic number.

21412221410 is a deficient number, since it is larger than the sum of its proper divisors (17188274590).

21412221410 is a wasteful number, since it uses less digits than its factorization.

21412221410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3249865.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21412221410 its reverse (1412221412), we get a palindrome (22824442822).

It can be divided in two parts, 214122 and 21410, that added together give a palindrome (235532).

The spelling of 21412221410 in words is "twenty-one billion, four hundred twelve million, two hundred twenty-one thousand, four hundred ten".