21144241011222 has 36 divisors (see below), whose sum is σ = 53292117652956. Its totient is φ = 6041211717240.

The previous prime is 21144241011143. The next prime is 21144241011251. The reversal of 21144241011222 is 22211014244112.

21144241011222 is a `hidden beast` number, since 2 + 1 + 1 + 4 + 424 + 1 + 0 + 11 + 222 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11986530304 + ... + 11986532067.

It is an arithmetic number, because the mean of its divisors is an integer number (1480336601471).

Almost surely, 2^{21144241011222} is an apocalyptic number.

21144241011222 is an abundant number, since it is smaller than the sum of its proper divisors (32147876641734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21144241011222 is a wasteful number, since it uses less digits than its factorization.

21144241011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23973062393 (or 23973062383 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 21144241011222 its reverse (22211014244112), we get a palindrome (43355255255334).

The spelling of 21144241011222 in words is "twenty-one trillion, one hundred forty-four billion, two hundred forty-one million, eleven thousand, two hundred twenty-two".