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111122001212020 = 225197137928033877
BaseRepresentation
bin11001010001000010011011…
…011010001011001001110100
3112120110011022022202220220021
4121101002123122023021310
5104031110324302241040
61032200424223414524
732256204531461431
oct3121023332131164
9476404268686807
10111122001212020
1132452637815437
1210568231454444
134a009b5234286
141d624953c2b88
15cca81198124a
hex65109b68b274

111122001212020 has 192 divisors, whose sum is σ = 249908595148800. Its totient is φ = 41381309652480.

The previous prime is 111122001212009. The next prime is 111122001212051. The reversal of 111122001212020 is 20212100221111.

It is a junction number, because it is equal to n+sod(n) for n = 111122001211985 and 111122001212003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28661850322 + ... + 28661854198.

It is an arithmetic number, because the mean of its divisors is an integer number (1301607266400).

Almost surely, 2111122001212020 is an apocalyptic number.

111122001212020 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 111122001212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124954297574400).

111122001212020 is an abundant number, since it is smaller than the sum of its proper divisors (138786593936780).

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

111122001212020 is a wasteful number, since it uses less digits than its factorization.

111122001212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7158 (or 7156 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111122001212020 its reverse (20212100221111), we get a palindrome (131334101433131).

Subtracting from 111122001212020 its reverse (20212100221111), we obtain a palindrome (90909900990909).

The spelling of 111122001212020 in words is "one hundred eleven trillion, one hundred twenty-two billion, one million, two hundred twelve thousand, twenty".