1232101112220 has 432 divisors, whose sum is σ = 4231392765600. Its totient is φ = 289768596480.

The previous prime is 1232101112197. The next prime is 1232101112237. The reversal of 1232101112220 is 222111012321.

1232101112220 is a `hidden beast` number, since 1 + 232 + 101 + 112 + 220 = 666.

It is a super-2 number, since 2×1232101112220² (a number of 25 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 = 1232101112193 and 1232101112202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 300583731 + ... + 300587829.

Almost surely, 2^{1232101112220} is an apocalyptic number.

1232101112220 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 1232101112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2115696382800).

1232101112220 is an abundant number, since it is smaller than the sum of its proper divisors (2999291653380).

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

1232101112220 is a wasteful number, since it uses less digits than its factorization.

1232101112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546 (or 4530 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1232101112220 its reverse (222111012321), we get a palindrome (1454212124541).

The spelling of 1232101112220 in words is "one trillion, two hundred thirty-two billion, one hundred one million, one hundred twelve thousand, two hundred twenty".