421101111244 has 24 divisors (see below), whose sum is σ = 804035525328. Its totient is φ = 191382162240.

The previous prime is 421101111199. The next prime is 421101111247. The reversal of 421101111244 is 442111101124.

It is a super-2 number, since 2×421101111244² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (421101111247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373767 + ... + 990910.

It is an arithmetic number, because the mean of its divisors is an integer number (33501480222).

Almost surely, 2^421101111244 is an apocalyptic number.

421101111244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421101111244 is a deficient number, since it is larger than the sum of its proper divisors (382934414084).

421101111244 is a wasteful number, since it uses less digits than its factorization.

421101111244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371705 (or 1371703 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 421101111244 its reverse (442111101124), we get a palindrome (863212212368).

The spelling of 421101111244 in words is "four hundred twenty-one billion, one hundred one million, one hundred eleven thousand, two hundred forty-four".