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12211010004 = 2231778957203
BaseRepresentation
bin10110101111101010…
…10011100111010100
31011112000011120122210
423113311103213110
5200002004310004
65335404153420
7611412605154
oct132765234724
934460146583
1012211010004
1151a6884606
122449538870
1311c7aa530b
1483ba68764
154b7052089
hex2d7d539d4

12211010004 has 24 divisors (see below), whose sum is σ = 28494456480. Its totient is φ = 4070036704.

The previous prime is 12211009999. The next prime is 12211010059. The reversal of 12211010004 is 40001011221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184867 + ... + 242069.

It is an arithmetic number, because the mean of its divisors is an integer number (1187269020).

Almost surely, 212211010004 is an apocalyptic number.

It is an amenable number.

12211010004 is an abundant number, since it is smaller than the sum of its proper divisors (16283446476).

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

12211010004 is a wasteful number, since it uses less digits than its factorization.

12211010004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74999 (or 74997 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12211010004 its reverse (40001011221), we get a palindrome (52212021225).

The spelling of 12211010004 in words is "twelve billion, two hundred eleven million, ten thousand, four".

Divisors: 1 2 3 4 6 12 17789 35578 53367 57203 71156 106734 114406 171609 213468 228812 343218 686436 1017584167 2035168334 3052752501 4070336668 6105505002 12211010004