111000212420 has 72 divisors (see below), whose sum is σ = 250754259840. Its totient is φ = 41259179520.

The previous prime is 111000212419. The next prime is 111000212423. The reversal of 111000212420 is 24212000111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111000212395 and 111000212404.

It is not an unprimeable number, because it can be changed into a prime (111000212423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335075 + ... + 578165.

Almost surely, 2^111000212420 is an apocalyptic number.

111000212420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111000212420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125377129920).

111000212420 is an abundant number, since it is smaller than the sum of its proper divisors (139754047420).

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

111000212420 is a wasteful number, since it uses less digits than its factorization.

111000212420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243213 (or 243194 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 111000212420 its reverse (24212000111), we get a palindrome (135212212531).

The spelling of 111000212420 in words is "one hundred eleven billion, two hundred twelve thousand, four hundred twenty".