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12010221122 = 26005110561
BaseRepresentation
bin10110010111101110…
…10110111001000010
31011000000100110002112
423023313112321002
5144044104033442
65303432415322
7603424123634
oct131367267102
934000313075
1012010221122
115103502989
1223b2247542
131195302c23
1481d11ca54
154a45de082
hex2cbdd6e42

12010221122 has 4 divisors (see below), whose sum is σ = 18015331686. Its totient is φ = 6005110560.

The previous prime is 12010221079. The next prime is 12010221151. The reversal of 12010221122 is 22112201021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10993312801 + 1016908321 = 104849^2 + 31889^2 .

It is a super-2 number, since 2×120102211222 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12010221097 and 12010221106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3002555279 + ... + 3002555282.

Almost surely, 212010221122 is an apocalyptic number.

12010221122 is a deficient number, since it is larger than the sum of its proper divisors (6005110564).

12010221122 is an equidigital number, since it uses as much as digits as its factorization.

12010221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005110563.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12010221122 its reverse (22112201021), we get a palindrome (34122422143).

The spelling of 12010221122 in words is "twelve billion, ten million, two hundred twenty-one thousand, one hundred twenty-two".

Divisors: 1 2 6005110561 12010221122