421101111222 has 24 divisors (see below), whose sum is σ = 995329899720. Its totient is φ = 127606397280.

The previous prime is 421101111199. The next prime is 421101111247. The reversal of 421101111222 is 222111101124.

421101111222 is a `hidden beast` number, since 421 + 1 + 0 + 11 + 11 + 222 = 666.

It is a super-2 number, since 2×421101111222² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 421101111195 and 421101111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1063386447 + ... + 1063386842.

It is an arithmetic number, because the mean of its divisors is an integer number (41472079155).

Almost surely, 2^421101111222 is an apocalyptic number.

421101111222 is an abundant number, since it is smaller than the sum of its proper divisors (574228788498).

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

421101111222 is a wasteful number, since it uses less digits than its factorization.

421101111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126773308 (or 2126773305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 421101111222 its reverse (222111101124), we get a palindrome (643212212346).

The spelling of 421101111222 in words is "four hundred twenty-one billion, one hundred one million, one hundred eleven thousand, two hundred twenty-two".