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12222212200000 = 2655117737187
BaseRepresentation
bin1011000111011011010010…
…0111011101011001000000
31121021102122222112110102221
42301312310213131121000
53100222042310400000
641554450132420424
72401011545364055
oct261666447353100
947242588473387
1012222212200000
113992458177690
1214548b6177714
136a871b7ca06a
143037b5abb02c
15162ddb43c61a
hexb1db49dd640

12222212200000 has 336 divisors, whose sum is σ = 33118162676928. Its totient is φ = 4438073600000.

The previous prime is 12222212199973. The next prime is 12222212200031. The reversal of 12222212200000 is 221222221.

12222212200000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1700596407 + ... + 1700603593.

It is an arithmetic number, because the mean of its divisors is an integer number (98565960348).

Almost surely, 212222212200000 is an apocalyptic number.

12222212200000 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 12222212200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16559081338464).

12222212200000 is an abundant number, since it is smaller than the sum of its proper divisors (20895950476928).

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

12222212200000 is an frugal number, since it uses more digits than its factorization.

12222212200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008 (or 7978 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12222212200000 its reverse (221222221), we get a palindrome (12222433422221).

The spelling of 12222212200000 in words is "twelve trillion, two hundred twenty-two billion, two hundred twelve million, two hundred thousand".