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12211211104 = 25388998123
BaseRepresentation
bin10110101111101100…
…00100101101100000
31011112000112210111221
423113312010231200
5200002032223404
65335412344424
7611414403361
oct132766045540
934460483457
1012211211104
1151a6a01704
122449615114
1311c7b45a01
1483babbb68
154b7091954
hex2d7d84b60

12211211104 has 24 divisors (see below), whose sum is σ = 24047248680. Its totient is φ = 6103973376.

The previous prime is 12211211087. The next prime is 12211211107. The reversal of 12211211104 is 40111211221.

12211211104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122112111042 (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211211107) 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 3 ways as a sum of consecutive naturals, for example, 75387 + ... + 173509.

It is an arithmetic number, because the mean of its divisors is an integer number (1001968695).

Almost surely, 212211211104 is an apocalyptic number.

It is an amenable number.

12211211104 is a deficient number, since it is larger than the sum of its proper divisors (11836037576).

12211211104 is an equidigital number, since it uses as much as digits as its factorization.

12211211104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102022 (or 102014 counting only the distinct ones).

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

Adding to 12211211104 its reverse (40111211221), we get a palindrome (52322422325).

The spelling of 12211211104 in words is "twelve billion, two hundred eleven million, two hundred eleven thousand, one hundred four".

Divisors: 1 2 4 8 16 32 3889 7778 15556 31112 62224 98123 124448 196246 392492 784984 1569968 3139936 381600347 763200694 1526401388 3052802776 6105605552 12211211104